We discussed this at the time of the merger, but worth repeating:
No Big Ten school is adding sports until they have a couple years of data on what revenue sharing looks like, and on the costs of cross-country travel for all teams; and until NIL stabilizes.
If a big-hitter donor wants to cough up enough money to start a new sport -- or 2 if required for Title IX compliance -- every Athletics Dept in the country is steering them toward Football NIL. Or toward buying out the football coaches.
Some donors will always be found for big but lesser items like hiring new coaches, facilities upgrades, and the like. These pale in comparison to endowing a new sport.
And that's before asking how soon a Power 4 school will want to add a sport that loses money everywhere.