We are in a time where the WWE is slowly transitioning the reigns to the young talent. Last year, it was
HUGE mistake to have Undertaker come and feud with Punk and simply squash Punk. Why? Because Punk's momentum in my eyes were stopped as far as being a credible champion back then, not because he lost but how he lost. They should put Taker with the younger guys who are just a step away from being on par with Orton, Cena and etc. as far as main-event status. Last year, CM Punk was already over as a heel because he feuded with fan favorite and kids' hero Jeff Hardy. So if he returns have him feud with the following:
Sheamus- A great way for him to get more over as a heel is to have him feud with the Undertaker. Have him ambush the Undertaker and proclaim that he is the true phenom of the WWE after being champ within 2 months in RAW and that he beat the top guys like Orton(though it was by DQ), Cena(though it looked like a fluke
), Triple H( I expect him to beat Triple H at Extreme Rules).
Shad- Definitely a possibility. Just have him take out Taker and let the seeds of their feud grow. A bit redundant with my plans with Sheamus but that's the only way I see them getting involved with the Undertaker.
Or just have Taker feud with the top guys and not include the title in that feud:
Triple H- Revenge for HBK's retirement is good enough of an angle here.
Chris Jericho- Jericho did pin him at Elimination Chamber, so why not have Taker get revenge?
IMO, that's the best way to go with the Undertaker when he returns.