#1 An unannounced 30th entrant

WWE has announced a total of 29 men who will be a part of the Battle Royal. While that is an odd number, the first edition of the Andre the Giant Memorial Battle Royal also had an odd 31-men battle.
While it seems like all the participants have been announced for the battle, there is still room to add one more superstar to make this an even 30-men affair.
WWE could announce the final entrant on the day of the match, or even enter the superstar completely unannounced!
Can it be an NXT superstar like Pete Dunne, Matt Riddle, or Velveteen Dream, or a legend such as The Undertaker, The Rock, or John Cena? Only time will tell, and even the most famous superstars wouldn’t mind winning a trophy named after a legend.
The chances of an unannounced participant seem high as WWE would want to surprise its viewers at The Showcase of the Immortals.
Major rumor about recently released stars HERE