#4 Rhea Ripley
The former NXT UK Women's Champion would also be an ideal entrant into the women's Royal Rumble match, both to advertise the nascent brand across the pond and to elevate a potential star on the main roster.
Rhea Ripley would bring power to the Rumble match, stacking up well against other powerhouses in the contest like Charlotte Flair and Nia Jax.
#5 Alundra Blayze
It wouldn't be a Royal Rumble without a returning legend or two, and Alundra Blayze was one of the few that didn't appear in last year's match. There was chatter that she would work Evolution, but that didn't happen. A Royal Rumble match would be far safer, as she need not stay in there for too long.
Blayze's entrance would be a nod to the past in a match that will also highlight the future, and the interactions should be a lot of fun.