I was unable to even order the Vader as it was. Sadly our local flea market/ebay guys are well aware of Unleashed potential. Couple that with the inability to have the first three ROTS Unleashed clear themselves out and it doesn't bode particularly well.
As for anyone paying that much for an Unleashed Vader, it's just pure stupidity and I won't even apologize if it's someone here. My Sideshow Vader, while not AFA graded

cost less than that and comes with a useless droid as well. Geez, you could actually get a Sideshow
and a Gentle Giant Vader for that price, minus the shipping. I paid $149 for my GG and whatever $400 it was for the Sideshow. That's dumb. Just plain dumb.
As for Hasbro re-releasing stuff, well, I think they will. Maybe not the RH Vader as Vader's coming anyway in ROTS form and was released twice previously, albeit in smaller numbers. Yoda's coming with Sidious already so I really don't get the whole thing with the previous version considering the second is nearly identical in many ways. I do think Boba will be re-released, as will Han and the stormtrooper. And probably a few things that don't need to be. My suggestion is that anything that didn't get a re-release already (Vader, Leia) on new cardback is eligible to show up again.