I can’t speak for Jim, he’s a lot more knowledgeable than I’d ever hope to be.
Imo, it’s sooner than later. Programs and conferences are scurrying to not be left behind.
Imo, the program, most appealing to both of the top two programs is UNC. They’ve done a great job of positioning themselves by building up and focusing on their football program. Naturally, people will be quick to point out their lack of on field success, but that’s not what this is really about. It’s about money, eye balls, and what you bring to the table.
The caveat re: the above, is this is all programs left not named ND, who basically can call it’s own shot. If ND decides sooner than later to join the B1G, I think you’ll see the implosion of the ACC as we know it. UNC will pick which conference it wants to join of the big 2 and we will see who joins them. The dominos will fall from there.