- The reason WWE decided to bring Roman Reigns back for the Royal Rumble in the #30 position is to get the biggest possible face reaction for Randy Orton winning the match.
- WWE knew that when they trotted out Reigns as the last entrant, the fans would hate it and possibly expect him to win too. When Orton finally eliminated Reigns, instead it generated a favorable pop which is what the company wanted.
- Reigns also had to participate in the Royal Rumble in order to begin his storyline with Undertaker leading into WrestleMania.
Source: Wrestling Observer Newsletter. Subscription information available at f4wonline.com