The First Strike team is still deciding if we're going to include the droids as player control objects or not. I'll update you once I have an answer for you.
Yes you could in GC. We know what you're talking about we just haven't decided if it'll be in GC. It's not that we can't do it, it's if we want to do it.
Well it's not logical. You see the X-Wing can only support one person. So you can't have two people in the starfighter. Not to mention the fact that having a human become a droid is silly. That was a problem with GC.