I say that Bishop Fellay will be auxillary Bishop over the VA seminary and will teach them to take on the ancient rite (mess) that is Latin but no words of consecration.
Well, at least you're answering the OP Question, songbird.
I don't settle well with your answer, but it is an answer.
I would expect that if a 'deal' is made with modernist
Rome, all 3 current 'active' ExSPX bishops will be sidelined.
The Vatican will go through the Society dossiers with a
fine-toothed comb, and every priest with serious
traditional leanings will be moth-balled. +TdM will be
retired, and +AdG will be gradually phased out. But HEBF
will be given some kind of gold-filled ornament position
which will give him the opportunity to smile and continue
giving boring speeches, but they won't be for 3 or 4 hours
anymore. He'll have to trim it back to one hour max, lest
there be "consequences." Then the gold plating will show
signs of wear and the base metal will corrode, leaving
HEBF with a highly unattractive situation, but he will be
stuck like a fly in a spider's web, with no means of escape.
IOW, he'll feel the pinch of oppression like the Society
priests are feeling now, under him. What goes around
comes around. It will be God's mercy to him so he can
then do penance for his staggering offenses against
goodness and right justice, if he only recognizes it as such.