Well, it seems that Brock Lesnar is out of the UFC retirement pool. Despite being signed with the WWE for appearances through Wrestlemania, Dave Meltzer is reporting that Brock has begun his USADA testing in preparation for another big fight for Dana White, who he reportedly met with over the weekend. WWE has denied any kind of meeting between Brock and Dana; however, many UFC officials are claiming it to be true.
If this ends up being correct then Brock could begin his testing and sit out the rest of his suspension and then could be ready to fight as early as December. This could obviously have a big hand in shifting plans for him regarding the Universal Title and WWE.
WWE has also been trying to work out a deal with female fighters like Ronda Rousey at the same time so this may end up working out as an exchange of talent with Brock doing a few fights and Ronda working some WWE dates.
Update: UFC Vice President of Athlete Health and Performance Jeff Novitzky who oversees the program said that there is "zero truth" to these reports. "Lesnar is not currently enrolled in the USADA testing pool nor has there been any inquiry on his part to do so."