My pardon for throwing in all other Rites instead of pin pointing the Latin Rite as the one with celibate priests. I don't think the Pope is demanding all Catholic Priests to be celibate. But, I doubt the Pope will reverse the vows. I hope that the other Rites aren't worried.
Why should a single rite within one church be unable to accept priest accepted in almost all other rites?
Why should priests from the other rites not be able to serve within latin rite churches?