Re: The Avengers 2! The Official News and Speculation Thread - Upgrade section 5 -
Guys its pretty simple? To make Pym and Tony create Ultron.
They steal Tonys suit tech for Ultrons Armor. But after deciding they don't need The Avengers they ask Hank Pym (Might not be announced in The Avengers 2 but just listed as an outside government contractor) to replicate NOT steal the JARVIS AI. And it goes terribly wrong.....
Since the JARVIS AI is so advance no one can replicate it. So Pym and Stark inadvertently create Ultron.