Originally Posted by spideymouse
Sure. But that's not the point. The point is that Ultron's origin is incredibly essential to his status as a villain. To skip over that and make him the Avengers 2 villain makes him less compelling, and then to revisit it in a prequel-ish Ant-Man seems like an afterthought. Prequels can work when part of the intrigue of the villain is the shroud of a mysterious past, but the intrigue of Ultron is pretty much directly opposite of that.
I think Ultron being created out of JARVIS would be compelling .... it's just that it changes the mythos, so they'd piss off fanboys.