Sanctions available to the PL include unlimited fines, points deductions or, in extreme cases, expulsion from the PL. The PL has no powers to relegate us, strip us of any trophies or enforce a transfer ban.
f this is about image rights, which were about £17/18m a year I think, and we were found guilty, I'd say a very hefty fine would possibly be our punishment. If we were found guilty of deliberately concealing, say, £50m a year, then we'd likely face a points deduction, would be my guess. But that's purely a guess.
If we could show that the amounts involved made no material difference to our position under FFP or the PL's rules, then that's a completely different kettle of fish to a sum that would materially impact those.