Would this be a full fledged Anglican rite, similar to the Byzantine rite in Catholicsm, which is Catholic but not Roman Catholic while of course accepting papal supremacy?
I'm just guessing and going on limited knowledge.
I believe that's what Moyer and Hepworth (Primate of the Traditional Anglican Communion) are proposing. It's still in preliminary talks, though, so it's impossible to say how it would work or whether it would work at all. I do not believe they are talking about the Anglican Use option that has been in place for a number of years.
Not correct. Byzantine Greeks and Slavs are Romans. They are not Latins. Everyone in the Catholic Church is Roman.