6. Take Revenge On The Shield
The last time we saw Undertaker he was of course being decimated by the Shield. Is he going to let that slide? Don't count on it. A return at the Royal Rumble to destroy and eliminate the group makes perfect sense. Taker would get his revenge and then be able to move on to his Mania opponent. This angle could also serve as the final straw that breaks the Shield up, furious at the elimination they could end up taking it out on each other. Revenge has always been one of the most compelling storylines in WWE. The plan had been all along for Taker to get that vengeance against The Shield at some point. Summerslam had been the plan but injury woes curtailed Taker's ability to feature. Royal Rumble could now be the big occasion that The Deadman uses to come back and make dead meat out of Ambrose, Rollins and Reigns.