Well, I think it's pretty unlikely that Tim will be allowed to go back to being Robin when Bruce does return. That seems to be a delusion Tim's laboring under, but whether he's ready to acknowledge it or not he's more than outgrown the role in terms of what Bruce allows it to be for any of his partners.
But I agree Tim needs a new costume, and probably a new name. I'll cry if he has to stay in this one for any length of time post-Bruce's return. Ugh.