It’ll be interesting to see how much they borrow from the comics here.
Having him played by the same person who voices JARVIS could be very telling as far as either his origin or the origin of Ultron in the upcoming Avengers sequel, Avengers: The Age of Ultron.
The debate on who Vin Diesel will be playing in Avengers: Age of Ultron rages on, mostly because of the hints that Diesel himself keeps dropping in interviews.
The big rumor was that Vin Diesel would be playing Thanos in the Marvel Universe. Now, a Tweet from Empire Magazine has thrown that idea into the trash.