Personally i want to play as a ranger. Using camo and survival techniques to sneak around and get people stuck in my traps. The Ranger could be like a pathfinder, able to see whats going on around him, play a support healer role to the combat medic through use of survival techniques and construct powerful camo to hide themselves from others.

I'd put droids down as a class i want to play but i think they should be a race and able to do any class they want except jedi/sith.