Board Thread:General Discussion/@comment-25193520-20150425024807/@comment-61.194.75.233-20150724205205

I think a major part of Vision being in the film and locking him out of the internet and how they worked so hard to stop all the Ultron bots with Ultron even saying at one point it was "all" of him and having those scenes where Wanda and Vision each spoke to the "last" Ultron bot was to assure that he was really gone for good... Plus, Vision sort of is Ultron-- a good 70+% of him anyway. It was just that last corrupted part that didn't transfer.

And if he still existed in a robot form then surely he would still be working on enacting his plan.

However, he does seem like a villain worth coming back if they ever decide to go the route of having a villain team face the Avengers. Face it-- of all the Ironman-centric villains he was by far the best, you aren't going to top him.

The solution is pretty simple, really. If Ultron got onto the internet, there is no reason to think he could have really been completely removed. There could always be some back up copy of him hidden within some server out there that happened to be disconnected when Vision tried deleting all versions of him on the web. In that case there would be some version of Ultron backed up prior to that big battle sitting inside a server somewhere but totally without a body to act with and no easy means to regain one for the time being.

This would make the Avengers victory not at all meaningless, would certainly explain why Ultron seemed completely destroyed and went dormant and yet could still allow him to return in a form to team up with other villains in the future.