To me, this set doesn't sound too bad, and considering the lack of Naboo junk for some time it's sort of welcome.
I mean, a Tarpals with Kaadu's always been a "base" custom people have done... Simple legswap and some painting, so why not just pick one up from Hasbro if you can, ya know? Sounds like a plan to me.
The Royal Guard I'm disinterested in, if only because the figure itself sorta sucks to me. It's pre-posed, awkwardly sculpted... I had little interest in it, and really the only good coming of it is if you DON'T have the figure and they don't change it. If they do then people will still want the original really bad too.
The Gungan Soldier's cool... Why not, ya know? I have a few POTJ ones in a neat line fighting some BD's marching into combat... Looks good, and I won't complain about adding another to the ranks. I agree that if it's the Faamba pack-in that would rock. I would like a little diversity and the figure's were near equal in quality anyway.
The BD is cool too... I'd like it to be capable of standing without wilting over time though, like so many of them do.
Any extra accessories coming? Hmmm... Maybe the shoulder bag, and bi-ocular thing for the scout that were due out in the 2nd wave of Accessory sets will be packed in? One can wish.
The only complaint I can come up with on this idea is that Naboo was dull overall.

Not exactly a winning moment in the saga, so a 4-pack loses some steps with me there, still this is a far better set than the last 2 at least, or 3 possibly even.