I actually read about another scenario just now in a piece from Radio-Canada. The journalist suggested that they ccould declare the last race null and void, in which case they can wipe all this nonsense from history, go with the standings before the race - and still declare Verstappen champion because of larger number of poles.
Obviously though, that would mean the FIA admit big errors were made, so if that path is chosen, I suppose they'd blame it all on Masi and fire him for it. I guess it would be a clean break for the FIA though: 'We're sorry one guy messed everything up. We will get rid of him, erase his last actions, and start the new season afresh'.
I suppose that would be rather radical though - and maybe they'd own money to Abu Dhabi if they would declare the race null and void?