A lot of things could happen, but right now his selfishness and arrogance are leading him to retirement. A weak team could do a smart thing and play to his ego: We'll let you start as long as your produce, as long as you give is 10 pts. and 5 assists a night, you can start. If you can't then you have to allow us to sub you in from the bench.
If Iverson is a man, then he can accept that. If he can't then he'd be a cancer on any team, at best a distraction, at worst disruptive to the team.
There are a lot of tams that could benefit form his talent if he's willing to stay within a defined role, but he has never been happy with limits. He should realise by now that his individual act isn't winning basketball.