Absolutely. Its one of thier best selling games. and you could include alot of non canon fights, as well as an addition RTS kinda thing. Kinda like an expansion of the galaxy conquest. Only you do alot more in depth. Like gather supplies, get resources, all that. And if the planet was a heavy support of your enemey before you took it, then you have to put down insurrections unless you completely destroyed your opponent.
It always bothered me that I could have an army of 150 left and my enemy could have 30, and just cuase i took their Bases, they lost. Thats thirty men that could kill mine. Especially when its something close, like if its on Endor's moon and i have 32 men to the enemy's 25. Tehy could easily over take my men with a good sneak attack. I dont know, just a thought.
But yeah, I think you should. and maybe add an RPG element. Where in the main story (where in BF2 it follows the 501st), you get one character, but you rank up and can choose from different guns, then you can take that character online. So you could rank from average clone trooper, to clone commander and carry a turret gun and a blaster rifle. or osmething like that. Just a thought.