WWE.com has announced that Brock Lesnar vs. John Cena at the Extreme Rules PPV on 4/29 has been changed to a no-disqualification, no count-out Extreme Rules match.
The Wrestling Observer is reporting that Lesnar was shown on the screen backstage at the Monday Night Raw tapings currently in progress in London so it appears he is overseas for the show.
Update (5:50 p.m. ET): Early spoiler reports indicated that simply video clips of Lesnar were shown at the tapings in London as Lesnar never made an appearance in front of the crowd.