No, if anything, it was the other way around, since AT-PTs were present on the Katana Fleet several years before the Clone Wars (later put back into limited production during the Empire). In fact one of the ROTS guides mentions the RT's connection to the earlier PT.

The PT's existance in EU's sort of contradictory over various sources...  Some say it's not in service during the Empire, others say it's a highly utilized anti-personnel walker the Empire employs in staggered armored columns.  I choose the latter...

I think it may have been a Clone Wars era design though, to keep it in line with the OTHER view EU has on it, but I view it as the RT coming first in the Clone Wars (we just see it in ROTS...  nothing to say it didn't exist as a military vehicle even prior to the existance of "Clonetroopers" in a Republic military), and the RT perhaps evolved into the enclosed PT we see to some extent, but still served as a Recon Transport rather than a frontline walker whereas the PT does frontline duty in combat situations due to its enclosed cockpit...  And as a superior design the PT has a long life into the Imperial era, or perhaps both could survive into the Empire's service even (their design just seems semi-redundant to me, a bit, and the PT a much superior design due to the enclosed cockpit really).

EU's botched the AT-PT over the years though, bouncing the backstory on it all over the place...  I stick with the notion of it being a heavily used walker in the Imperial era, despite Zahn's writings that say otherwise.

No doubt Anton...

Qu Rahn's my favorite...  He discovers Kyle Katarn, befriends his father Morgan...  Dies tragically after the battle of Endor though, and that just sorta sucks.

He's a guy a few adventures should be written about or a prequal type game to Jedi Knight should be made about...  Maybe how Rahn escapes and goes into hiding even.  I'd take that game right quick.

Personally, I don't view it as so much "evolution", but rather as simple similarity...

An AT-RT has 2 legs as does an AT-ST, but to me I look at that as being no different than my car having 4 wheels the same as most other vehicles on the road...

The ARC-170, while having some similarity to an X-Wing, doesn't jump out at me as being an evolutionary step...  Backstory's laying claim that it's an Incom ship, and that's fine, but the S-Foils strike me as something more along the lines of a feature seen on many types of ships by many types of manufacturers...

EU shows many ships with a general "shape" like the X-Wing that really have no tie to the X-Wing...  The supposed role of the XW and ARC are completely different, so I see them on separate evolutionary paths...  Honestly, I see the ARC as a closer kin to the Y-Wing (though if you go by EU, it too was in service during the waning days of the Republic...  Perhaps the Y-Wing lead to the ARC instead?).

For my money's worth, these ships and vehicles more stand alone rather than "lead into" each other...  The AT-ST is in the walker class, but shares no heritage from the AT-RT.  To me, the AT-RT maybe evolved into the AT-PT instead which pops up in the Empire in EU materials...

The ARC, to me, doesn't lead into the X-Wing so much as the Z-95 does as EU's established, and the ARC simply fades from existance or goes into public service or whatnot.

I agree wholeheartedly that there was too much "effort" from Lucasfilm to tie looks of things between trilogies...  EU's fleshing it out some so that it makes a little more sense and isn't just the straight "Hey, the ARC has the same shape as an X-Wing, sorta, so it must be what they design X-Wing's off of!" kind of mentality.  Too simplified for my liking, personally, and treads too much on things I enjoy that were already established (The Z-95, which is a ship still in service under the Alliance, will forever be the true forebearer to the X-Wing, and the ARC will have had no influence aside from perhaps the S-Foils being a "good" idea for venting increased heat output during combat).

The Corellian Corvette(-ish) in ROTS, which I believe was wholely intended to be the ship in ANH from Lucasfilm's POV but which has become obscured, I'm torn on as to how to explain...  I agree with some guys at a site I know that debate ships a lot, that the large section missing in ROTS would be awkward as an "upgrade" to the ship that happens between 3 and 4...  On the other hand, as Nick noted, the ship's only referred to as Tantive in ROTS I guess, so that's possibly a whole other class of Corellian ship...  The basic design, in EU, is varied...  The Mysteries of the SIth game had a larger version of the Corvette in service in the New Republic Era that had a large/spacious hangar capable of holding a defensive force of Rebel fighters, for instance, but had the basic shape of the Tantive IV down exactly (only larger).  The Corellian Gunship from EU also sports an incredibly similar look to the movie Corellian ships.  So for what that's worth, it could very well be a sorta smaller version of the Tantive IV we see in ANH, but not the same ship...

Every source out there's continually referring to it as the Tantive IV though for some reason.

The ship/vehicle issue is really interesting...  What I find interesting is how EU's sorta blending things, or blurring lines all together.  For instance, AT-AT's were basically placed in the Clone Wars era EU now...  They look almost identical to the ESB AT-AT's, based on the late conceptual art for AT-AT's (basically, a slightly boxier looking AT-AT then).  AT-TE's have been spotted in the Imperial-Era EU now too, which I like the thought of them still seeing service...  The AT-AP now may show up as well, and all the other walker variants mixed in from all the EU from all the eras...  Lucasfilm intended visual tie-ins, but EU's debunking them as "evolutionary steps" somewhat.  I like that, personally.

Lucas supposedly had a little heavier interest in the CW from a personal perspective, and did a little more direction with it than other EU materials...  He's known to have liked the cartoons a lot and that's why he "allowed" them to introduce Grievous basically.

It's all EU though...  LFL's pretty strict that anything besides the film is EU and the rest is open to debate/discussion.  The beauty of that is imagination...  I feel other genres or licenses can sorta be too stifling to the minds of their fans.  The "this is how it is" mentality prevails.  Lucas though disagrees with EU stuff but basically says to just debate away on it as to whether it's the truth or not. 

 I'm not terribly upset personally.  Wave 4 was weak at best...  Those initial figures had some winners in there though.  The WEG1618 droid is among my fav droids of all-time in the modern line I think. 

The DLX one is nice too...  I'm not fond of a couple, and for price they were all a let-down on some level, but there was quality in there.  I was always a little astonished how the figures seemed superior (at the time) in some ways to basic line figures.

Just wish they were cheap enough to amass a nice lot of extras.   

How long ago did she eat those kids?  I'll think about THAT all night. 

Captain Antilles disappoints me.  I remember when some other site (MouseDroid, maybe?) had the preliminary photo of him back in April and someone noted the lack of articulation and that it might be better once we got the final release version.  Too bad it doesn't look like that is going to be the case. 

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Six figures that aren't bad (although Antilles could definitely have been better), so here's hoping we can find them! 

More or less, that's my opinion.  I too am a little intrigued by Obi-Wan...  He could really be superior to every other one of his figures thus far, but his "mystery" aside I'm pretty content with all the figures except Antilles.

Antilles looks like reusing SOME parts from Organa could've even been easily acheived...  And Organa's a pretty nicely articulated dude.  Not the most exciting figures (either one), however Hasbro could've improved Antilles to at least be as interesting as Organa's figure.  If they do a Tantive IV Commander (Jeremy Bulloch), I hope they at least do him some justice beyond what Antilles got.

I really wanna get the Turbo Tank (*shudder*) driver to see what that aritculation is like...  I'm wondering if he can straddle the seat of the RT and ride it without looking weird.  I'd love to replace that schmuck of a figure it came with.