R2 with no D2. Humanoid, will work alongside astronauts. Limited, but considerably better than previous humanoid robots.
And think about this. One of the most difficult things to get a robot to do is walk. This one isn't going to have to. Future models may be programmed to handle the most dangerous EVAs.
Question: I wonder how long before R2 becomes R. Something. Humans will not be able to resist naming this guy.
I suggest Sammy. Or maybe Isaac...