I'd really love to see a few things before the line ends...
ANH - fill out the rest of the missing "big" Cantina dudes - Tonnikas, Baniss, Mosep, Tzizvvt, Arliel Schous, Solomahal; plus a redo of the Lars Family - Owen, Beru, and Power Droid.
ESB - a really nice Han Solo (Carbonite) with fancy LED'd Block, a really nice SA Lando, and the vintage mustache Bespin Guard.
RotJ - Slim Aloo, resculpts for ReeYees and YakFace
Prequels - um... office duel Palps and Cliegg are pretty much it I guess.
EU: I'd be Hasbro's best pal forever if they could go back to the Comic Pack well one last time to get me the Crimson Jack/Han Solo Marvel Star Wars #15 pack!