This week provides a good example of how the Calendar of the Vetus Ordo is starting to to groan a bit because it has been unchanged since 1962 (I bet that's never happened in liturgical history before; and this sort of unresponsiveness to natural, gradual, evolution is itself, in fact, Untraditional).
(1) May 1. I'll be fair: I can see why Pius XII had the S Joseph idea in 1956. But it never caught on, and little more than a decade later the Novus Ordo reduced it to it an optional memorial, leaving the poor old Vetus Ordo lumbered with this enormous, innovatory and untraditional, whale, marooned and decaying just above the tideline. It would be absurd to do anything other than to clean up the beach and to return pipnjim to May 1 in both Calendars. (Keen Josephites might enjoy the restoration of the Patronage of S Joseph on the Wednesday of the second week after the Octave of Easter. The propers for that feast played quite nice typological games with S Joseph and his OT namesake.)
(2) S Catherine being a Patron of Europe, it is weird to have her on different dates in the two Calendars. A choice should be made.
(3) Since S Catherine is a Patron of Europe, presumably her rank in the Vetus Ordo Calendar should be II class. (Or should there now be a bit of a cull of Patrons of Europe?)
But my bet would be that these and all the similar problems will still be unresolved in 2062.
Bad news, by the way, that pipnjim didn't make it home from exile in the Ordinariate Calendar. Not very Patrimony. I wonder what went wrong there? Is there anybody who still loves the Opifex? But in the Novus Ordo, there is nothing to stop a clerk from saying a votive Mass and votive Office of pipnjim on May 1.