There are many people who are very capable of being worthy of ending HBK's career at Mania 26. he list goes...
HHH- Obvious choice, they have a storied past together and they are two of the most famous wrestlers of all time. They could set it up like they did with Ric Flair last year on how Shawn needs someone to give him a good match if it ends up being his last. If this is the match they plan to do, I really dont want a feud, or even a title involved, I want it to be a respect thing. Its a match in which you know who's gonna win, but it will be heartbreaking no matter the result.
Y2J- Just like Triple H, they have a long history with each other, feuded and been friends many times. Jericho's energy as a face reminds me so much of Shawn and theey work so well with each other on the mic, as well as in the ring. Really all they need to do is get Shawn involved in the Royal Rumble, eliminate Jericho (which usually one Wrestlemania feud has, i.e Randy Vs Trip), then Jericho starts to rumble about HBK's Career, Shawn gets fed up and challenges him to a match at Mania which turns into a Career ending match, and Shawn leaves the WWE with a ceremony made by Jericho thus succesfully turning him face again.
John Morrison- The next HBK in my mind, everything about him makes him seem like HBK. Him and Miz have already defeated DX so we know he has the talent to defeated HBK, but the feud itself would be difficult. I guess Morrison could have a midcard title, Shawn makes him lose tha title, and Morrison challenges him to a match at mania. And after he beats Michaels, his main event push can begin.
Jeff Hardy- Now there's sumthing about Jeff that kinda reminds me of HBK. He doesnt have size, he's quick, and he is usually shown as an underdog compared to some superstars he faces (Trips), They have gone on and on about him being similar to HBK in most ways, so a match would be very interesting, as it has never been done before, and if Hardy isnt World Champ at the time would solidate he main event status. To my knowledge Jeff has never won at Mania, so this would be a huge make up to all the loses he has accumulated over tha past mania's he's been in.
John Cena- Current face vs. Past Face. I believe during his time as Champion after his Iron-Man match with Bret Hart, he became the face of of WWF. Now Cena is the current face, and since one if tha plans of Mania this year was Stone Cold vs Cena, or Hogan vs Cena, they could make it up with Shawn Vs Cena. Sure its been done before, but wat really hasnt, Shawn has faced off against everybody in the WWE really at least once. If Shawn should go, then it should be to someone who's has a future in tha business, young, and is already successful. Now if Cena is unable to do it, then Morrison, Hardy, Jericho, HHH would be fine. But we all remember how Cena and HBK stole the show, but was overshadowed by tha Hype that was going into the Batista Vs Taker match, well this could be the make up to that and if they could put a title into it, it would make into being one of the most important matches in Mania history (Shawn's Career ended, the passing of the torch as tha Show Stopper from Michaels to Cena, and A momentual confrontation between two of the currently most talked about wrestlers).
The only thing about his retirement is, I dont want it to be like Flairs is right now, I dont want him involved in Mania 27, i want him to take a few years off, and maybe at Mania 30 or sumthin far off, he can make his return, not come back after a few months or maybe a year. You need to give fans a chance a accept that your not a superstar anymore but a retired superstar which most of them dont think that Flair is. I have all respect for Flair, but its time to move on, he said he wanted to be Mayor of North Carolina, be like Ventura and do that and maybe come back one day. As for Shawn, it might be wise to talk a job for tha WWE backstage and unseen from tha public eye, til it would be right for a return, and maybe at Mania 30, I wouldnt mind even one more match from you, but u'll have to wait til them