OK,
let's assume that there are some tweaks to US anti-trust law, combined with a forceful and farsighted TV exec and/or College President/NCAA exec, who is able to push through a wrinkle in the new play-off system requiring or at least encouraging relegation. Maybe there is a proviso stating that any P5 conference that has a relegation agreement with a G5 conference has preference in making the playoffs to any conference that doesn't have a deal. One conference rushes through the deal for 2014 (let's say its, dunno, the ACC and the AAC), and gets offered $15 million for the rights to the relegation game. Suddenly everyone takes notice, especially when the Big 12 gets completely shut out of the play-offs. Multiple commentators point out that if Big 12 had a relegation deal, it would have been in.
In the inaugural relegation game, Memphis defeats the Demon Deacons of Wake Forest. Ratings are phenomenal.
Suddenly the Big 12 and the Pac 12 spend the 2015 off-season in a low-level bidding war to sign the MWC. In a surprise move, the result is a four-way alliance. The Big 12 and the Pac 12 jointly partner with the MWC and the Middle-American Conference. A committee will pick the top two schools from one or both of the two G5 conferences for the year-ending relegation game. There is a revenue-smoothing provision for teams going up and going down, and some scheduling tweaks between the two G5 conferences. It is announced that BYU will be rejoining the MWC. The TV deals are also announced. The rights are $19 million a piece, which surprises some, though it is revealed that the G5 conference TV rights were kept the same, even though they were now more valuable, in return for a bigger relegation game payout. The necessary adjustments to NCAA rules are made to accommodate this new conference grouping. The MWC announces that it intends to have a CCG to end the season which it claims it is entitled to do under the rules, but there is resistance from the NCAA, since it could result in a 14-game season. The issue is unresolved by the start of the season though the MWC has tentatively scheduled the game.
In the off-season, there is unusual national interest in both Memphis and Wake Forest. That interest continues into the season. Both teams set attendance records.