In a recent number of New Directions, Fr Digby Anderson wrote about the need for more Anglican priests and bishops to celebrate the Old Mass. Of course, since the motu proprio making clear that any priest of the Western Church may celebrate this Mass without further permissions, there can be no doubt about its legality in the Church of England. The Holy Father has ordinary, immediate, and episcopal jurisdiction over all the Faithful.
I wonder if there are any Anglican clergy or seminarians out there who would be interested in becoming a small and informal group or network to support and promote the Old Mass, whether in Latin or in the English Missal version - which surely must have acquired liceity by immemorial custom.
FSSA, perhaps? (Fraternitas Sacerdotalis Sancti Augustini)