In just 12 years after the Papal Motu Proprio, the fruits of it have been so manifest that, by the Grace of God and Our Lady, and while there still remains a lot of work to do over the next few decades to realize it, there is a real possibility that the TLM will become the Dominant Liturgy as soon as 2050.
See Fr. Donald Kloster's article at LiturgyGuy:
https://liturgyguy.com/2018/10/08/vocations-foundations/ "This past year, I have been doing a National Study on the TLM only parishes in the USA. Currently, there are around 70 of these but they are exploding in numbers with each passing year because the TLM priestly vocations are outpacing Novus Ordo priestly vocations by more than 7 to 1. My preliminary numbers are exceeding my initial expectations. There is a huge wave transforming the Catholic landscape and it is largely being ignored by the Catholic leadership. I can now say what I suspected last year. The Novus Ordo is dying and it will be replaced by the Vetus Ordo sooner than anyone had foreseen, but certainly by 2050 the TLM will be the dominant liturgical practice once again. My instincts tell me that 30-50% of the current vocations coming from the Traditional Latin Mass were not raised in it. Next year, I’ll try to test that feeling with the aforementioned study. A great number of the young men and women entering the TLM orders discovered it themselves; it wasn’t their family upbringing."
Also, this earlier article:
https://liturgyguy.com/2017/09/12/what-benedict-accomplished-with-summorum-pontificuм/ Thoughts?
Finally, those who say +ABL would not have supported such a Papal decree are entirely mistaken, +ABL asked for something like it for a long time - "The only little success which might be on the way is this famous decree still in suspense, still being put off, a decree to enable all priests to say the old Mass, to leave them freedom and no longer to persecute them. Now, this decree was due to appear, but for three years they have been talking about it and for three years it has still not been published. For, you must realize that, at present, the situation at Rome is very difficult. Modernism is still all-powerful at Rome. The Modernist and progressive Cardinals are in the majority; thus, even if there are one or two cardinals who are more or less traditionalists and who have at least a desire to come back to Tradition, well, they are immediately stopped by five or six cardinals who have all power and who put pressure on the Holy Father to stop any return to Tradition. It is they who are preventing this decree from appearing. They say to the Pope,
"If you make this decree appear, if you liberate the old Mass, the traditional Mass, then everything that we have done since the Council is over and done with."There is a true struggle going on in Rome between the few traditionalist Cardinals - Cardinal Oddi, Cardinal Ratzinger, Cardinal Pallazini, on one side, and all the progressive cardinals on the other: Cardinal Casaroli, Cardinal Pironio, Cardinal Baggio; and all those who are in the Congregations of Worship: Cardinal Casoria with Mgr. Virgilio Noe; and then in the Congregation of Faith, Mgr. Hamer, a Dominican, all these are Modernists and each time that they go to see the Pope they say, "Above all, no turning back, no return to Tradition, out of the question!" http://archives.sspx.org/archbishop_lefebvre/long_island_conference_1983.htm What Benedict Accomplished with Summorum PontificuмOn September 14 the Church celebrates the Feast of the Exaltation of the Holy Cross commemorating the 4th century recovery of the True Cross by St. Helena, mother of Emperor Constantine. This year [2017] the date also marks the tenth anniversary of the implementation of Pope Benedict’s landmark motu proprio,
Summorum Pontificuм. Thousands of words and hundreds of articles and books have been written in the last ten years celebrating the motu proprio and its significant impact upon the Church and her liturgy. More than any of its other accomplishments, however, Summorum Pontificuм finally reaffirmed that the traditional Latin Mass (which Benedict labeled the Extraordinary Form) could no longer be marginalized by the Church.
Quote What earlier generations held as sacred, remains sacred and great for us too, and it cannot be all of a sudden entirely forbidden or even considered harmful.
With this one sentence, with a mere twenty seven words (twenty seven thunderous words) Pope Benedict told the world’s bishops that the Traditional Latin Mass was sacred; that it had always been sacred and would always be sacred; and that none of the faithful could be harmed by a liturgy which had fed & formed Catholics for centuries. Seismic words which shook a liturgical landscape.
Quote What earlier generations held as sacred, remains sacred and great for us too, and it cannot be all of a sudden entirely forbidden or even considered harmful.
These words were written to the world’s bishops in the Holy Father’s
letter which accompanied Summorom Pontificuм’s release. They were blunt words but necessary to say.
For decades episcopal ideologues had condemned the traditional Mass, ghettoized it, and demeaned its faithful adherents. While never formally abrogated, its suppression was nearly complete and universal. A de facto abrogation. With Summorum Pontificuм the Mass of the Ages could no longer be marginalized.
This is not to say, however, that the persecution of tradition has ended. Of course it hasn’t. To claim such a thing would be ridiculous and naive. Far too many bishops still act as if Summorum was a non-event.
In recent years Rome has decried rigidity the greatest evil and many careerist are quick to echo those sentiments. For those who bristle at orthodoxy, who seek to innovate in matters of timeless doctrine, the timeless traditional liturgy is rightfully viewed as a threat to their agenda. Lex orandi, lex credendi, lex vivendi.
Ten years after Pope Benedict liberated the ancient Rite the ideologues still protest. Some wait for Rome to act. Rumors persist that Pope Francis will rescind it with his own motu proprio when the time is right, possibly when his predecessor passes.
Regardless of what the future holds in store, Benedict has already stated the irreversible liturgical truth: the traditional Mass can not be marginalized.
The legacy of Summorum Pontificuм, indeed the victory of Summorum Pontificuм, can be found in the very seminarians and priests formed and ordained during Benedict’s papacy. They are not ideologues of the post-conciliar revolution. They are simply men who have been introduced to tradition and who have responded to it. For them, what was sacred will always remain sacred. They will not unlearn this lesson.
Its victory can also be found in thriving traditional parishes, increased Mass attendance, and booming traditional orders and vocations. The faithful simply want to be fully Catholic once again, members of a Church that didn’t just begin in 1965.
If you are fortunate enough to have discovered the ancient Rite, be sure to thank God for such a blessing. Thank Him and hold nothing back. Immerse yourself in the supreme prayer of the Church, the Holy Sacrifice of the Mass, as it has been offered in the Roman Rite for centuries.
And in your kindness, please say a prayer for our pope emeritus Benedict as well.