Although Pope Francis gives expression to his personal wish that the Traditional Mass should fade away, he does not abrogate the liturgy. He expressly contemplates that it will continue, in fact. So Pope Benedict's confirmation of the first contention is untouched.
As for the lex orandi, it is hard to imagine a more effective confirmation of the rupture effected by the New Mass than Traditionis custodes, especially when read in conjunction with its accompanying letter. The rupture is so complete that the Traditional Mass cannot be celebrated in parish churches! There is no argument here. These Masses are different things, says Pope Francis, and he is the Supreme Legislator in the Church.
The traditionalists have therefore won the debate. The losing side is still in power, however, and its synchronic view of the liturgy will hold so long as it maintains control. But synchronicity is hard to hold for long. It is the traditionalist view of the liturgy as diachronic—a Mass for all time—that will survive the intervening chaos.