#30 Samoa Joe

It is probably wishful thinking or blind hope, but I think the injury to Samoa Joe is a ruse and he makes his first appearance in the WWE since January 8th at the Royal Rumble Match with the final entrant.
If Joe is healthy, I think his main target is going to be John Cena. If I were booking the Rumble this way, I would have Joe come in and eliminate Cena within 30 seconds of entering the ring. This sets up a grudge match at the Elimination Chamber pay per view in February.
Look who just shut down all of Tony Khan's critics! More HERE.
Say the injury is legit and Joe is out until late-March, then I'd give the #30 spot to Braun Strowman if he doesn't win the WWE Universal Championship in the triple threat match. If Strowman defies the rumors and wins, I'd love to see a pissed off Brock Lesnar in at #30 after that.
Continue on to see who I will be among the last four standing in the Royal Rumble Match, and will is going to win it all and go to WrestleMania...