Of course there should be no conditions. They are already Catholic!
The suspension of Archbishop Marcel Lefebvre back in the 1970's was unjust. It was a disgraceful and scandalous action on the part of Paul VI and those around him.
Whether or not the later excommunication was just or not at this point is moot. Archbishop Lefebvre is no longer "excommunicated" he is dead. On his deathbed, he received Extreme Unction. Presumably it was administered by a priest of the Society. In that case, that priest had Faculties due to "danger of death." If the excommunication was unjust, he had no sin. If it was just, then his "sin" whatever it was, was absolved. If he, in his mind, believed that he was acting in a true "emergency," his excommunication was indeed, unjust and he was right.
The fact is, at this point, it is done. They were revoked by our Pope, Benedict XVI.
The "illegality" of the traditional Mass was itself "illegal." This was confirmed as well, by Benedict XVI in Summorum Pontificum.
May it happen soon.
In Toronto, Transfiguration Chapel has already had to add a third Sunday Mass and they are only two kilometers from The Oratory where two Masses Read and Solemn are celebrated each Sunday. After the funeral of Father Stephen Somerville, at which I was privileged to assist (as well as the late Father Nicholas Gruner's). A few years ago, I assisted there regularly on Sundays and Feast Days in the Schola at a time when I was between positions as a Choir Director or Cantor.
I asked where the people were coming from causing the addition of the third Mass. Some came from typical parishes who have read and discovered the truth that was denied them and some from the existing Sunday Masses at the Oratory, St. Lawrence the Martyr and St. Patrick's in Schomberg and the various Feast Day Masses organised by the hard-working Toronto Traditional Mass Society - Una Voce Toronto. Some came from the Hamilton Diocese, Oakville, Burlington and north. People were looking "for all of it" according to Father. A parish that embraced the traditional liturgy completely.
I assure you, if this reconciliation happens, there won't be enough hours available for the Masses that will be needed to accommodate the people who will flock there.
Anyone who does not welcome this overdue structural recognition and mocks this great gift and these long-suffering abused brothers and sisters has a twisted view of the Catholic faith and displays a contempt for truth and justice. People calling them, and probably you, dear reader, as a "Katholic Krazy" or that they are a "Trojan Horse." For those who think this way I have this message, "the horse has already been inside the gates and you've drunken from its breast."
For others still, there will be a lot of crow to eat.