Becky Lynch

People love The Man and probably won't be happy when/if she loses to Asuka. They'd be even more upset if she lost to Asuka, entered the Royal Rumble and failed to win it.
She's been the Daniel Bryan of the last eight months but has always been popular. If she doesn't enter the Rumble and win it, the fans might boo whoever wins (Charlotte Flair).
The rumors have pegged Lynch for either a one-on-one match with Ronda Rousey or a triple-threat match with Rousey and Flair at WrestleMania 35. While a singles match is the way to go, WWE will want to add Flair to the mix, especially if the women get to main event the show.
But having Becky do double duty would be wise for WWE in order to capitalize on her popularity. Several superstars have done it in the past, including Roman Reigns a couple years ago.
The results of both matches might not meet the fans' expectations like when Bryan was omitted from the match in 2014 and Batista won. Whatever happens or doesn't happen, the Man should be in the rumble match.
Becky Lynch has been challenged HERE.