Kane isn't just one of the best big men in WWE history, he's one of the best wrestlers in WWE history. He's made his gimmick work for almost 15 years and has had a ton of classic matches. I hope he breaks the record, he deserves it.
Indeed and hes also 1 of the safest workers in wwe if not the safest think of all the matches he's been put in (hell even RR 2012 Protecting Cena)
Edge and Orton
New Age Outlaws
Los Guerreros (Eddie did go Over in the end but in 2002 both had same reaction)
John Morrison & The Miz
The Dudley Boyz
Edge & Christian
They might not have been as big as DX but teams listed above both wrestlers stood out.
John Morrison-midcarder for life. The Miz- WWE Champion.
Edge- 11 times world champion. Christian- 2 times world champion, midcarder.
Los Guerreros- Eddie was huge, while Chavo ended like an absolute jobber.
Answering the question: I believe Kane won't be in 2013 Royal Rumble. He was at 13 consecutive rumbles until last year, and I think 2011 was his last year. 13 is the "sinister number" so it fits his gimmick. Now that they broke that "streak" I think he won't return.
And see his last appearances at Royal Rumbles. 1 or 2 eliminations at best, being eliminated in 3-4 minutes... he's not a relevant participant since 2009. And it's a shame because he's my favourite wrestler, but still. They will give Big Show or John Cena the elimination record.