The fact that Bishop Fellay has insisted upon using the term, "errors of the Council", is encouraging.
It is also undeniable that virtually all of the problems of the past few weeks would absolutely have been completely avoided had Bishop Fellay and his staff been completely open and honest with the priests and faithful (and, yes, even the bishops) of the Society in the way Archbishop Lefebvre was. After each session with Roman representatives, Archbishop Lefebvre made known precisely what had transpired (and, if not each and every time, nearly all the time).
Because of this clandestine attitude of Bishop Fellay, I would still encourage that the SSPX replace him at the soonest possible opportunity and appoint someone else, preferably a priest that has not been part of the recent plans, as the Superior General of the Society.