Between the Jedi News and the previously leaked Hasbro Customer Service thing, I'm thinking the next few waves are going to go something like this. All personal speculation, of course.
Wave 4 (like all the other rumors suggest):
Darth Vader (ROTJ - although the previous leaked list said EP 5)
Sandtrooper (second pauldron color)*
Darth Vader (repack)
Sandtrooper (third pauldron color)*
*- There were multiple Sandtrooper listings.
I'm not all that happy with the character selection, but it's not terrible. I'm hoping the Sandtroopers vary more than just being repainted pauldrons since at least the next one isn't using the same number as the Orange one, according to Jedi News' sheet. I'd like to see the White pauldron come with the security hover droid and a stand for it, and the folding stock E-11 that apparently the Stormtrooper isn't coming with now. Then the Black pauldron could come with a Dewback prod/lance and this rifle.
Anyone hear about a new sculpted Lobot (Lando's Aide) in 2014? 2004 was the last version and before that was 1997. He needs to be redone. Since Hasbro seems to be on an Empire Strikes Back kick. Also the mustached Bespin Guard needs to be done in the black series or Saga Legend 5POA line. People's thoughts. Thanks.
I think having a mini-wave, of similar characters or scenes would work: think Lobot, Bespin Lando, Bespin Leia, Wing Guard. Or various Hoth outfits. Those would do well in the 6" line, I think.