Either the new company takes over maintaining Android, or it fumbles the bag and the development becomes less centralized for a while - until some leader emerges and takes over.
Either way, the new control center of Android wouldn't be Google. A decade ago, I would have seen that as a very bad thing. Now, I'm almost certain that this would be a change for the better. Google is not what it once was.
>>wstran+qe
Well, there is barely any new Android feature worth talking about for the past three years (no, new skins definitely don't count). I seriously doubt there is going to be any change in the market share if Android were controlled by a different company. We would have already seen that by now.