#3 The first ever women's main event

Most people probably don't want to hear this right now, especially after the announcement of the first ever Women's Royal Rumble match earlier this year, but WWE just doesn't have the kind of star power or storyline crafting to make an all women's main event match work.
Sure, WWE could bring in Ronda Rousey and put her up against Asuka or Charlotte, but it's just not enough to warrant a main event match for the ladies yet. Maybe it would with the right stipulation, like a cage match or an extreme rules elimination match, but that would probably only make WWE look even more desperate.
In the end, if WWE needs to call upon their top women to carry the match and add a stipulation for good measure, there is no point in doing an all women's WrestleMania main event. In fact, not even the mainstream publicity garnered by a possible Rousey versus Asuka match would make it worthy of the main event spot.
Becky Lynch has been challenged HERE.