I think it'd be funny if they didn't have the hair extensions (what it likely is, not a wig) and he comes out with short hair and someone asks about it and he says "well I've been off for a year, I'm the fuckin undertaker, if I walk around in public with long hair people go 'ZOMG THAT'S THE UNDERTAKER' and I have to stop everything I'm doing and sign 5,000 autographs. So, I cut my hair and wore a hat and glasses most places and for the most part, enjoyed my well-deserved time off".
Play the Game, believe it or not, HHH and Undertaker (supposedly) work very light. Like Bret Hart said, if you just straight up kick a guy in the face, there's no art to that, making it LOOK like it hurt really bad, that's art. If Taker has extensions, I really REALLY doubt HHH, who can hook both your arms behind your back and plop down on your head without rearranging your face, would be so clumsy as to pull his hair extensions out. Not only that but it's an easy sell "ZOMG HE PULLED HIS HAIR OUT, I BET THAT HURT".
You guys are pretty ridiculous.