Would love to see Bossk...second favorite Bounty Hunter next to Boba Fett.
With the new Armor Bodies expect armored "heroes" like Han and Luke before we see anything "new". Once they are out the way, then we'll probebly see Sand-Trooper 1, 2, 3, 4...etc and then clones in the two stage armors and MAYBE if we're lucky the Commando's and ARC troopers. Then...and only then, may we see some new alien characters.
Personally, i'd love nothing more than a influx of Alien characters like Bossk, Greedo, Nien, Ackbar etc. And as for human characters (and i cant believe i'm saying this) but i'd love to see Bail AND the younger version of Antilies, as well as the Rebel Heroes Lando and Wedge
I'd also love to see some POST movie characters, especially in the Jedi ranks to go alongside Luke...like Corran Horn, Kyle Katarn, Streen etc. And of course...MORE ALIEN JEDI in both departments, as well as some more Sith characters, Dooku, BANE (sorry to all the EU haters, but BANE and the Sith Lord line are made for eachother). And yes, maybe even the Apprentice (that will probebly hold to how well the game does).
With the Imperials...we need Tarkin, its that simple. He is an ICON, the "upper crust" of imperial nature, and yes, i mean the Cushing Tarkin...as much as i love Wayne Pigram as an Actor, the younger Tarkin just didnt look right, maybe if he was given some GODBEDAMNED screen time instead of a "loose end tie-r-upper" we may have liked him more!.
With the Rebels, as i said, Wedge is a must (hero pilot of the rebellion folks), Lando, MON MOTHMA, General Rieken etc.
and of course, we all want the droids, chewie and...for some reason, people want full "set parts", which is kind of worrying...how big are your display rooms people!!!!