As I reported before Dwayne will be on an upcoming episode of Cory in the House coming out later this year. According to laughingplace.com here are a few more details to the plot:

The episode is slated to premiere later this year. In the episode “Never the Dwayne Shall Meet,” when President Martinez appoints The Rock to be Presidential Advisor on Physical Fitness, Cory comes up with a get rich quick scheme that involves The Rock endorsing his invention. But when Cory, Newt and Meena trigger a comedy of errors, The President misses his first meeting with The Rock, Cory’s business opportunity sails by and Sophie makes tea for two with the visiting superstar.

• The Rock has an Oscar in his Game Plan
• Dwayne gets in on the Game