Such an event would merit three (!) if it were THAT easily feasible!
The unification of the two largest Ukrainian Orthodox Churches in America into one body as the Ukrainian Orthodox Church in the USA about 8 years ago was pursued primarily to set an example to the disunity of the 4 factions in the motherland.
Archbishop Vsevolod is/was one of the prime movers for the re-unification of the 4 separate Orthodox Churches in Ukraine.
Then, the re-unification of the Orthodox and Catholic counterparts into one Kyivan Church, in communion with both Rome AND Constanstinople (if that was possible at all) was supposed to be in the next agenda.
Unless the original "mission" to unite the 4 factions of the Ukrainian Orthodox Church has been relegated to the back burner, optimism for the Archbishop's "conversion" to Byzantine Catholicism I think is NOT that rosy, much less his "conversion" to Latin rite Catholicism.
I might be mistaken, though!
AmdG