4. Chris Jericho
OK, so a long term Jericho return is not on the cards, and it's unlikely he'll even stick around long enough to get to Wrestlemania (unless our predicted Y2J/Undertaker feud takes place) but why not bring back Chris for one night only to get his own back on Dolph Ziggler? Just imagine, Ziggler's kicking ass, the buzzer goes and out comes a vengeful Chris Jericho. He makes short work of his former adversary and the man who got him 'sacked' before either eliminating himself or having a short but unsuccessful run in the Rumble match before inevitable elimination. This would be a great way to make the audience remember exactly what Ziggler accomplished last year while at the same time giving someone in the Rumble a little rub when they get to eliminate the first Undisputed Champion in WWE history.
3. John Morrison
With a renewed push Morrison could provide a fresh opponent for CM Punk or a heel Randy Orton or even play the underdog role against men like Big Show or Mark Henry. Before he gets to that level though he must first make his return to the WWE. JoMo has stated publicly that he will be back in WWE at some point in 2013. He then said he'd rather be back in the next six months if possible which may be an indication that he'll be back in a WWE ring sooner rather than later. Just like Shelton Benjamin the Royal Rumble would be a great place for Morrison to make his big return. He's a fantastic performer with some edgy manoeuvres that we would only really see from a Shawn Michaels back in the day which should enable him to stand out from the other contestants during the Royal Rumble match itself.