What's really going to be interesting is when a Big 5 conference softball or women's soccer team competes against teams from the Group of 5. The women from one school will be receiving stipends, and more than likely the women from the other school will not. Because, if you're going to give stipends, every scholarship athlete is going to have to get one. Men's sport or women's sport. This is all assuming the Big 5 schools are allowed to create their own division within the NCAA.
And if they break away from the NCAA, the NCAA isn't going to sanction events with any Big 5 (non-NCAA) schools. I hope those 70 to 80 schools get used to competing against each other - in every sport.