There have been multiple comments from the athletics department on this. Indy is our future. Bronco went off the rails and made public comments about how BYU needs to get into the Big12 (I'm glad he did), but Tom and the President have never implied that the Big12 was a real possibility, or even something that BYU is interested in. What we know is that the university and the church love the freedom of independence. Also, Tom did say that BYU's relationship with the MWC is improving and told us not to rule a return out.
The public comments are out there. We just refuse to hear the bad news.