As noted earlier, there are reports that Chris Jericho will be finishing up shortly with WWE, at least for a while. Going by WWE's advertising, it looks like Jericho will be with the company through SummerSlam.
Jericho is currently advertised for WWE live events through the WWE Raw SuperShow on June 4th. Jericho will then tour with his band Fozzy in the UK from June 6-10, and will host the 10th annual Metal Hammer Golden Gods awards at the O2 Arena on June 11.
Jericho goes back on the road with WWE on June 15th, and is advertised for shows through SummerSlam on August 19th, including for No Way Out on June 17th and Money In The Bank on July 15th.
Fozzy will go back on tour for the Rockstar Uproar Tour, which takes place from August 15th through September 30th. The band will also release a CD in August.
Jericho is not advertised for any shows after SummerSlam until October, when he is expected to return. He is scheduled for the WWE overseas tour, which starts in late October.