Here's what Ben Kingsley originally had to say about the mystery project.
Now, if you haven't seen Iron Man 3, the rest of this might not make any sense. And there are Major Spoilers ahead.
Ben Kingsley plays the villain Mandarin in Iron Man 3, a character that is later revealed to be a pawn in Aldrich Killian's game. Mandarin, as it turns out, is actually just some lowly theater actor named Trevor Slattery, who is oblivious to his own current game of fooling Tony Stark into thinking he is a master terrorist. Many fans didn't like this take on the iconic Marvel bad guy, and now, with this secret project, Marvel is looking to right that wrong.
Ben Kingsley's secret Marvel project will be a Marvel One-Shot. The story will follow the 'real' Mandarin, who is appalled by Trevor's globally broadcast terror attacks. Wanting to reclaim his name, Mandarin sets out to abolish Trevor and Aldrich. While its unclear at the moment who would play Mandarin (will they cast Asian this time?), it seems entirely plausible that Guy Pearce will return as Killian.
The Marvel One-Shot films have been attached to Marvel's Blu-ray and DVD releases in the past, so it's possible that this short may be included in the Thor: The Dark World release sometime next year. Right now, no release strategy has been discussed.
Also, nothing has been confirmed by Marvel at this time. But this news comes from Latino Review, and they are usually on the money.
Are you excited about seeing who the "real" Mandarin is? Let us know!