I heavily doubt this, but this might actually be his plan for good.
As far as I’m aware Jocasta was going to do something really bad with Katerina Wells, and he may have been preventing that.
Then for keeping control, he might have some plan that the other AIs don’t see yet.
VISION QUEST May Have Finally Exposed ULTRON’S REAL MOTIVES.
• In Episode 1, Ultron reveals Vision’s location in Edinburgh to Paladin, indirectly causing the death of restaurant owner Fiona. Could this have been part of a much larger scheme?
• Ultron might have known that Vision wouldn’t respond to Fiona’s death like a human would, allowing him to manipulate events without facing any major consequences.
• In Episode 3, when Jocasta hacks into Vision’s mind, everyone is affected except Ultron. This hints that his abilities go far beyond those of a typical AI.
• By Episode 4, Ultron has earned Vision’s trust and persuades him to hand over control of his body. However, once Ultron takes control, he refuses to give it back.
And here’s what makes this truly terrifying:
Ultron isn’t just another AI like JARVIS, FRIDAY, or E.D.I.T.H. He’s a self-aware intelligence with his own agenda, and there’s a chance he’s been manipulating Vision since the very beginning.
What if taking over Vision’s body was never Ultron’s ultimate goal, but simply the first step in a much bigger plan?