Not every generic mmo has full voice acting
That's a pretty trivial gimmick, not something to hang your hat on for originality or trend-breaking. All they really did was take the EQ/WoW standard MMO format and threw some cute gimmicks here and there under the Star Wars flag. It's pretty pathetic really. It's also funny that the linear story-aspect of the game which is supposed to be the main focus (still not original, as LOTRO and GW were main-story based) completely eliminates the
Massively
Multiplayer
Online factor.
What gets me the most is the outdated and skill-less EQ combat where you spend 90% of time staring at your skill bar waiting for cooldowns instead of actually playing the game. Come on now, this is 2011 not 1998.
As for its future success, I believe it will be pretty successful and popular. It will have a stable release and it's a solid cookie-cutter MMO backed with legions and legions of rabid fanboys while having probably the most identifiable and popular IPs of all time. However, like WoW, just because its "successful" doesn't make it a good game.