What i wanna see is at least 1 (one) new high level area for each planet currently in the game. 1 new class for the Republic and Empire each, starting from level 1 of course (use your imaginations as to what these classes might be,Star fighter pilot, Imperial Trooper or whatever). Space expansion including space PvP and a robust housing ability, rent a flat in Dromund Kaas, Coruscant or whatnot, with ability to customize it anywhich way you want.
There devs, get cracking:D
(Fear none of these things will ever happen though, and if they do it will be done halfarsed:( )