There is no chance NC St is left out. If UNC is not in the ACC, neither will NC St.
Imo at some point UNC is in the BIG, NC St in the SEC.
The ACC has messed up a good situation more so than the Big 12.
I wouldn't say "no chance" but it would take a spiral of unlikely scenarios. NC State left out of the 4 team Big Ten, SEC expansion to 16 each...10-15%. The ACC is still a pretty similar 10 team league after that. Then you need the Big 12 to take 2-6 teams to truly devastate it, those 2 teams could be 'not nc state' but 4 or 6 would have to be.
If 16 is truly the number it's like a draft with 10 spots available. NC State could be left out of 4 but if it's only 4 the ACC is still fine and it was the Big East that was completely eliminated, doubtful they're not in the first six and no chance they're not in the first 7-10 taken by the other 3 leagues.