Baldi seemed certain that we were going to the ACC only a week ago or so and he has an inside source supposedly.
Don't know who his source is, but I don't see that happening. Just ask why would they take a basketball only school? Yes, I know they took ND without football, but ND guarantees 5 games a year against ACC opponents. That is big for them no matter how many people like to think ND is a non-factor in football and living off of past glory (until this year and I still believe they loose to Alabama or Georgia in the National Title game.). Rank wise they have not been very good, but ratings wise, the fact that they have "subway" alums/fans all over the country and travel well, they are a big time draw and desirable program.
New York has a huge TV market but the interest in college football is small. And as big as the market is, college baskeball ratings are not as high as one would think. The number of pro teams in the area affects it (although a good St. John's program brings the numbers up)..
Lastly, ACC is considered to be NC centric. It already has a school located in New York State (oh it really hurts to type this) that has a decent following.. If the ACC were to take a basketball only school, why not Georgetown. They are closer proximity wise to most of the schools, maintains the ACC's presence in a current market when Maryland leaves, and some of the schools will like their academic profile better (insert Clemson aka Moo U jokes here).