#2 Asuka vs Ronda Rousey

Asuka is one of the biggest acquisitions of WWE in recent history, just like Ronda Rousey. The Empress of Tomorrow has spent years honing her skills and enduring brutal beatings in Japan, before signing with NXT. On the other hand, we have a legit fighter in Rousey, who made waves in UFC before coming to WWE.
Pitting these two legit badasses would result in one of the biggest women's matches in history. Although this one is a WrestleMania calibre match, it won't hurt things to put it on the Summerslam card.
There's almost zero chance that Rousey will go to SmackDown during the Superstar Shakeup following WrestleMania 35. The company needs to make the right decision and switch brands for Asuka in order to give the WWE Universe, a match for the ages.
Letting these two women go at it for 20 minutes could result in one of the greatest matches of all time, no matter who goes over in the process.