Vin Diesel has now, according to his Facebook page, met with Marvel Studios regarding an upcoming project. If the below image he posted is any indication, that film is likely Marvel’s The Avengers 2.
“Marvel meeting today, Diesel writes. “Only the people in the room can tell you what was discussed…P.s. Thanks to Our page, for pushing to make it happen… you know I get tunnel vision with my work… and after that meeting today… wow!”
Based on appearance alone we can only assume he will most likely play Vision, seeing how he even used the word in his quote above.