The next phase of the "Women's Evolution" will come about at WrestleMania where pretty much all the women of the roster, both main and NXT, will compete in a battle royal named in honor of the Fabulous Moolah.
The men get a battle royal at WrestleMania every year and now the women will as well. Makes sense. As with the Andre the Giant Memorial Battle Royal, this one for the ladies is ultimately just a means to allowing all the women to share in the biggest payday of the year. It's a throwaway match more than anything, just as with the men, but it means more money in the pockets of the gals so that makes it worth it to them.
I will say that it's pretty wide open as to who winds up winning, so that adds an element of freshness to it.