Re: The Avengers 2! The Official News and Speculation Thread - Upgrade section 4
Looking back at IM3 they already set up a route to introduce Ultron. Tony basically did it when he created armors that could be controlled by Jarvis and the AI ****ed up. He might take it to the next level in A2 and have Jarvis controlling armors and such to help out...and the AI ****s up just like in IM3.