The Press would have a field day if the FAA let the MAX start flying and EASA did not. The claims of collusion, already out there, would be substantiated.
So lets say its allowed to fly by the FA..20% of those delivered can fly...the aircraft racked up that go to US carriers can be released. (and somehow meandered through all of the parked ac racked up in storage...)
Interesting today how Boeing was careful to word the news of 777X blowing up on final ground test into a non-issue, and the stock soars...
Reality will be quite the slap down to those who bought today.