I never minded Leia or Lando myself... I'd like Lando's cape to be removable, and Leia I am more into than Lando getting a resculpt for sure.
I can back almost any resculpt though if I knew Hasbro was going to knock it out of the park. ANH Han can use a redo, Hoth Han can use a brown coat super duper deluxe figure with multiple heads and such... Hoth Luke is **** too, IMO. XWing Luke has never been quite right. I'm sure many could argue Dagobah Luke needs an update (I know they can do those arms better). Yoda.
Lots of SA stuff I'd rebuy if it's a lot better. I'd prefer it stick to mains though if they update something (anything) remotely close to SA.
I hate seeing stuff like the DSGunner updated with just better elbows or whatever. To me that figure's fine as it is. Re-release it with a better chest armor and maybe a less Cloney head or just the helmet stuck on it... whatever but I just don't like seeing stuff like that get a slot where a Cantina character or something undone could get it.