To be completely honest, this still revolves entirely around Notre Dame and Texas.
Everyone knows that the Big Ten added just one school because it wants to add Notre Dame and figures that the best way to do that is leave slots open so that the Irish can have some input on the conference after they join. Big East members know that too, and they know that Notre Dame's half-commitment to their conference is unsustainable.
In fact, it's just the same as Texas' half-commitment to the Big 12.
When the Big Ten added Nebraska, two Big East schools were discussed as potential Big Ten members then: Rutgers and Connecticut. Both of these schools will end up either in the ACC or the Big Ten. But we won't know which until we see if Notre Dame and Texas are ready to actually join conferences.
Frankly, it seems pretty clear that Texas is not, which is why the Pac-12 just passed on them. But we don't know about Notre Dame.