As we've been reporting here on the website, Chris Jericho is scheduled to return to WWE at the January 2nd, 2012 RAW Supershow. The event takes place from Nashville, Tennessee.
According to a reliable WWE source, Jericho is currently expected to be a part of the Royal Rumble pay-per-view. It's likely he'll be involved in the Rumble match.
Current plans have WWE Champion CM Punk vs. Jericho feuding which would then lead to a match at WrestleMania 28. It's very possible things will change though. Stay tuned.
Reporter's Link:
BREAKING UPDATE: 3-Way At WrestleMania - Y2J/Punk/Undertaker?!