WWE covered The Rock’s social media posts here on dot com and questioned if he would be at Royal Rumble on Sunday. While they used it to plug the WWE Network exclusive, this likely increases the chances of him appearing in some capacity. We have a backstage update on Rock at this link.
Rob Van Dam is now considered “doubtful” for the Royal Rumble pay-per-view and is in-between WWE contracts. The ECW Original was at one time considered a favorite as a surprise Rumble match entrant.