All of his lawyers' fees, plus the judgment, plus damages, plus interest - he's in over a million, and that's before we even know what Billy's court fees are.
If he intends on using his channel to come up with the money for that, expect the shadiest and sleaziest sponsors, not including the ones he's already taken.
Or he could embrace the lolcow life and just go all in on the drama videos despite it being completely hypocritical for him to do so, and that'll bring in a lot of hate watchers and engagement.