Would? Lol man, the Big 10 did not invite Rutgers to be generous or charitable, they did so because their tv partners said it would be additive to the tv contract. They are not stupid.
You/I simply speculate. However, if their is mutual interest between the Big 12 and the AZs, it is because it is additive for both. Time will tell.
Yormark is wanting the 4th time zone not to appease his pride or put a pin on a map of the United States, but because our tv partners have told him to do so would be additive and improve the value of the tv contract.