Sooner or later I hope we'll see a WoW-size expansion, with a bunch of content such as new class, new world, new explorable zones on older planets, new fps, new operations and new achievement missions spread throughout the galaxy (like the aratech ones) and, of course, world pvp events such as raid on wow.
Well, I know, I'm dreaming.
Devs are already committed in a releasing period of 9 weeks with every single patch becoming smaller and smaller.