Wherever he’s hired next
That's quite a leap of faith.
Mike Richards is not some wunderkind who has cured cancer or created the Internet. In the pantheon of game-show producers he is by no means in the same league as, say, Bob Stewart, Frank Wayne or Bob Noah. Now he's radioactive with a trail of lawsuits at Fremantle behind him. If he proceeds against Sony (he has only hired a lawyer but not filed suit yet), he'll be unemployable IMO. He would either have to prevail against Sony (it's not exactly a slam-dunk case) or he's finished, again IMO. Sony has the doctrine of employment at will in their favor and they're lawyered-up, too. Suzanne Prete is herself a lawyer, I believe.
Start popping the popcorn.