I agree with Colton, with the new CBA teams and players are adjusting, however as has been said in other threads the most affected player will be the mid tier guys. Because the top players will still get their big contracts and the low end players will still get their low contracts but teams aren't going to pay the penalty for mid level guys and so there wont be as many of those size of contracts as there used to be so they will have to take short but higher dollar contracts or longer smaller contracts (for more stability). Which IMO is what Rush will fit into and given his injury history he would be a prime target to not chance a short high dollar contract but a lower more year contract (assuming he does as well as I hope he does anyway).
You may be over thinking it a bit. We got Rush BECAUSE he blew his ACL second time? That's a bit of a stretch. We got Rush because he was expiring contract that GSW wanted to dump and they were willing to part with the pick. I personally hope and would be pleasantly surprised if Rush gives us Foye like production off the bench and stays injury free all year. 2 ACLs is tough to overcome - remember Raul Lopez. Rush is a filler at this point of his career, anything we get out of him is a bonus. I doubt much thought went into keeping him beyond this season - that's just premature at this point given he is still rehabbing from second ACL.