For almost as long as I have been watching wrestling, both Kane and The Undertaker have been fixtures in the WWE as opponents and as a team. With their respective careers coming to a close, many fans would like to see them team up one last time, but the odds are against the stars aligning in order to make that happen.
The Undertaker was an elite superstar long before Kane arrived on the scene as he debuted at Survivor Series in 1990 and was already a multi-time WWE Champion. When Kane interfered during Taker's Hell in a Cell match against Shawn Michaels at Badd Blood: In Your House in 1997, however, it launched both of them to even greater heights.
While they were each other's greatest enemy at certain points, they were strong allies as well. Fans have seen Kane and Undertaker face off so many times that there is more of a demand for them to team up rather than to feud again. Their most recent rivalry was in the summer of 2010 and it just didn't seem to have as much heat as their previous ones, despite Paul Bearer's involvement.
As much as we would all like to see The Brothers of Destruction dominate together one more time, it seems incredibly unlikely. While Kane is 45 years of age, he is as good as ever and will likely be around for the foreseeable future, but The Undertaker is a major question mark. He continues to put on great matches at each and every WrestleMania, but his presence is essentially nonexistent aside from one month per year.
Taker is 47 years old in his own right and his body has taken quite a beating over the course of his near-30-year career in the business. It would be ideal if he could at least give us a few big matches per year rather than just one, but I'm not going to complain as long as we see him in some capacity, particularly at WrestleMania. It just isn't realistic to expect anything more at this point.
On top of The Undertaker's health and age issues, he has a family to worry about. Taker is married to former WWE diva Michelle McCool and they had their first child together several months ago, so I doubt that Taker will want to leave that behind for an extended period of time. He obviously understands how important he is to the company come WrestleMania time with his 20-0 streak alive and well, and there's no incentive for him to appear more than a few times, especially if he's making a king's ransom for one match.
If nothing else, at least we got to see Kane and Undertaker reunite on the 1,000th episode of Raw. When Kane was about to be attacked by a group of jobbers, The Undertaker's music hit and he came to the ring to assist his brother. They hit Tombstones in unison and celebrated together in the middle of the squared circle. There are obviously no guarantees in WWE, but that seemed like a swan song for The Brothers of Destruction more than anything else.
The tag team division is definitely on the ascent with Kane and Daniel Bryan holding the Tag Team Championships and solid teams such as The Prime Time Players and Rey Mysterio and Sin Cara pursuing them. There simply isn't a team with enough star power to warrant using The Undertaker in a tag team capacity alongside Kane. The dates Taker is willing to work are very limited, so the WWE has to pick and choose.
I'm definitely comfortable ruling out a Brothers of Destruction reunion, but one last match between them isn't totally outside the realm of possibility. Most would probably prefer to see Taker face new WrestleMania opponents like CM Punk, John Cena, Brock Lesnar or Chris Jericho in the coming years, but Kane is always an option since no story really needs to be told.
Since Taker has already beaten Kane on a couple of occasions at WrestleMania, though, there are better options to be explored. Nothing would be gained by having Taker conquer Kane again, and if anybody is going to beat The Undertaker, it should be somebody who gets a massive rub because of it. Fans will always remember the interactions between Kane and Taker fondly, but it's time to look forward.
Both Kane and The Undertaker are in the twilight of their respective careers and should essentially be able to dictate what they want to do. The Brothers of Destruction have teamed up many times and the well is dry when it comes to what else they can accomplish as a unit. With that said, we should all let The Brothers of Destruction rest in peace.