Bynum wants an increase in touches per game. If he stays in LA, he is a 2nd option at best. If he were a 1st option, there is no reason to doubt that he could put up 20/10/3. That won't happen on a regular in LA.
Why would he not want to leave, get the chance to get put up some nice stats, and get paid as a result? We all know that bigs get paid and the only center in the league that is better than him is D12.
He would sign an extension. He'll probably get close to the max to. Whatever he does sign in Orlando would be worth more than in LA anyway. Why? No state taxes.
For LA's part, they intentionally signed him to a contract that expires with D12's. Your scenario is more likely to play out with him than Bynum, tbh. The best deal they can get has to involve Bynum unless Riles puts LBJ on the block. Here's a dirty little secret: the Lakers don't like his agent (the same agent of Ariza BTW) so he won't the contract he wants from LA.
The only thing that could stop this deal from happening is the new CBA. As for Bynum I seriously doubt he would try to stay if he knows he has #1 option talent and will get the looks he wants elsewhere. He'd be an idiot to not bolt LA.
Also, given his injury situation, you really think he would take the chance of not signing an extension, hoping that he won't get injured, then test the unrestricted FA market next year? I don't.
