One pope at a time. If he makes prudential errors, he is still pope. I expect that the SSPX ooompah propaganda machine is wrong and that they will submit in humility or remain excommunicated. At a minimum, we won't see the raving anti-Semite Holocaust denier Williamson back because you can bet your house he will not willingly return. I would be fascinated to see how de Mallerais will have to back and fill to try to ignore his particularly poisonous schismatic expressions. Fellay MIGHT be able to engage in contortions necessary to the hypocritical high wire act, but I very much doubt it. If any purport to return, they should be ruthlessly kept under the microscope if not permanently cloistered.
If you ask me if I care whether you get back to me, the answer will be: not in the slightest.
Prepare to be disappointed. You and the other SSPX haters are not in union with the Pope on this matter. BXVI has already called Archbishop LeFebvre "Venerable." That's the first step in the canonization process in case you've forgotten. A child was healed of a cleft palate after touching his coffin. The Holy Ghost has rendered His verdict on the status of the Archbishop.
You'd best fall in line with Rome.