-- As of this writing, Brock Lesnar is not scheduled for either Extreme Rules on 7/15 or SummerSlam in August, though most believe that he will end up wresting a match at the latter PPV, likely against Roman Reigns.
-- While the working plan is that Lesnar will wrestle at SummerSlam in what would be his last match for the company, it should be noted that Vince McMahon has actually not given his go-ahead for Lesnar appearing for any dates moving forward. This is somewhat strange since Lesnar is the company's reigning Universal champion.
-- As for Lesnar's future with UFC, there has been some discussions of having him show up at the 7/7 UFC show to challenge the winner of the Miocic vs. Cormier match or at least tease to it. For this to happen though, Lesnar would need to put himself back into the USADA testing pool by June 30, as he would need to serve out the remaining six months of his suspension.
Source: Wrestling Observer Newsletter. Subscription information & prices available at f4wonline.com