Randy Orton vs. Kane was officially announced at the SmackDown taping for WrestleMania 28.
Here is the updated WrestleMania 28 card:
The Rock vs. John Cena.
Hell in a Cell: The Undertaker vs. Triple H (w/Shawn Michaels as special referee)
WWE Title match: C.M. Punk vs. Chris Jericho.
World Heavyweight Title match: Daniel Bryan vs. Sheamus.
Intercontinental Title match: Cody Rhodes vs. Big Show.
GM vs. GM Match For Control of Raw and Smackdown: Team Long (Captain - Santino & Kofi Kingston (?) & R-Truth (?) & three other members ) vs. Team Laurinaitis (Captain - David Otunga & Mark Henry & four other members)