As fans are aware, WWE officials had been building up Roman Reigns to be the new face of WWE for several years now. Although they still have part-time Superstars such as Brock Lesnar, The Undertaker, Triple H and John Cena as special attractions, Reigns was considered to be the top full-time Superstar on the roster.
In the wake of Roman's leukemia diagnosis, WWE is currently left without a top Superstar to be the "face of the company" along the lines of Hulk Hogan, Steve Austin, John Cena, etc.
According to sports journalist Brad Shepard, a source within WWE has informed him that WWE officials currently view Raw Women's Champion "Rowdy" Ronda Rousey as being the biggest draw out of all of the full-time Superstars on the roster at the moment.
A source in #WWE telling me who the main draw is in the company right now: “Ronda's absolutely the main draw right now.”— Brad Shepard (@TheBradShepard) October 31, 2018