I suspect he will attempt a comeback since he still wants to fight Wanderlei and a couple others...the only issue which I don't think has been discussed much is the fact that he has to apply for licensing when he does, and if he can't get licensed in Nevada, he's going to have problems in most places that aren't California or Texas.
Josh Barnett's near inability to fight in Nevada almost crippled his UFC comeback. He almost didn't get licensed for the Travis Browne fight, and I suspect would have been relegated to international Fight Pass events had he not.