My guess is a few easy confidence building fights then slowly step him back up towards top level assuming he doesn't get stopped along the way. IF he does then its the good old DHSS.
If he fights on, 1 easier fight for confidence, then straight back in the mix or retire, the Chisora fight could be a good one for him.
Burger King is hiring. Seriously, he has to start at club fighter level. Possibly change his trainer and manager. He has to press the reset button and start from zero, maybe take 2-3 years to rebuild his confidence. Then he can try to target the EU belt or so. And see if he can defend it 2-3 times and maybe, maaaybe try his shot at the weakest then-belt holder.
As stated a couple of confidence building fights and then maybe fight the likes of Michael Sprott and Martin Rogan, and if he comes through those then the Chisora fight is there for him. OR If Fury gets sparked by Haye in spectacular fashion then just make Price-Fury in a sink or swim kind of fight, would almost certainly be car crash television lol.