The rumors said Notre Dame to the ACC for partial membership. The rumors then stated a 16th team was discussed for partial membership (Villanova, Georgetown, and a mystery FBS school). The rumors on Notre Dame were true. The rumors on the other schools remains to be seen. On one hand, I really wonder if the ACC would want to cut a partial invite deal to anyone other than school. Notre Dame is special. Georgetown or Villanova are not. On the other hand, having a 16th member for all sports besides football makes a fair amount of sense. But it would have to be really worth it.
If you want to go way out of left field, you can talk about the claim that the ACC was "saving" its last two spots for Notre Dame and Texas. So, Texas anyone? Yeah, I don't buy it...