ESPN's Andy Katz is reporting that the University of Denver Pioneers, Texas-San Antonio Roadrunners and Texas State Bobcats will join the WAC, beginning in the 2012-2013 season.
UTSA and Texas State will join in all sports, while Denver will join in all except for football, as the university doesn't have a program at the FBS level.
The addition is meant to offset the loss of Boise State, Fresno State and Nevada to the Mountain West Conference. It's been said that the WAC has been looking to add four more teams to expand beyond its current six team membership, which is two below the amount required by the NCAA.
Katz also reported that the Montana Grizzlies have be extended an invitation to join the conference but have yet to make a decision. Should Montana decline, the WAC will offer a spot to the University of Seattle.
An official announcement about the three new schools joining is expected from the WAC on Thursday.