You know I was with you on that, man, but at this point it's water under the bridge. He's simply untradable on his current contract... he'll be a Pacer until his contract is up. Between the salary and the injury, there's no way on earth another team will touch him. So at this point you (and this is a generic you, not YOU Nappy) move on from talking about trading him and start trying to figure out if there's any way to get value out of him for the Pacers.
I still don't think he's a good fit on the floor with Granger... never did. Ideally, he's your sixth man and backs up both wing positions. I'd be thrilled if Rush could really come in and lock down the starting 2 spot early, because once Dun comes back Jimmy's going to be tempted to give him all the minutes the docs will allow.
At the same time, I like him tons as a person and want to like him as a player, and I hope he comes back blowing people out of the water. I just don't have a lot of good memories about Pacers coming back from surgery, and given last year's on-again-off-again six-month saga it's hard for me to be optimistic, even when reports are that he's progressing nicely.