#3 Loss of star power
The crowd at WrestleMania 31 went absolutely berserk when Ronda Rousey stepped into the ring to create a timeless moment with the Rock.
She even had a line to speak then...something that went like "whichever ring I step into, is my ring".
Sadly, that has changed now.
At the time of WrestleMania 31, Ronda Rousey was still undefeated, dominant and in her own words, capable of 'beating any woman in her division with one hand tied behind my (her) back."
Of course, since then, she's suffered two knockout losses to Holly Holm and Amanda Nunes and hasn't fought in the UFC in over a year.
And unless the WWE play their cards absolutely right in getting her over, a very natural decline in her star power could be something that they'll have to deal with.