With the SEC going to 16, and having a whole kettle full of matches that will draw eyeballs, I can see pressure on the ACC to nail down another team (or two) that will create watchable inventory.
WVU isn't a titan but there are no titans left in the east....WVU does offer decent football match ups....
If the ACC adds a team, it will open up the contract for renegotiation for whatever that is worth. If the ACC does offer, they will already have negotiated with ESPN. If WVU is not additive, no deal.
There is a little pressure. You snooze, you lose...as the Big 12 is finding out.
Wait and some desirable teams will reform under a GOR and not be available. The Big Ten reportably wanted Virginia and UNC some years back. They did not move and those programs are locked into 15 more years of a GOR...thus unavailable.