Since when is Banner an expert in developing A.I.????
1. We know that Banner has been offered to work at Stark industries.
2. They were together in the end of IM3 (after credit scene)
which could mean that they will be working together or have a "close" friendship in AoU.
3. Banner in the MCU has been portrayed as a somewhat brilliant scientist.
I never said that he was an A.I expert.
"He can with lets say Banner create the
AI and tech for their own purposes and they unknowingly create Ultron in the process.
There are a lot of purposes for why he would even create Ultron."
We saw that S.H.I.E.L.D. put both of them together to work on finding Loki
(I know that was his area of expertise in particular)
For all these reasons I think it´s possible that they will work together again.
Who is to say that Banner can´t help Tony in some way with the
AI and tech?
Banner is a scientist and definitely a friend of Stark, so I can imagine all kinds of different things he could help with.
He could for one be helping with navigation, comunication, tracking equipment for Ultron.
I can also, this I´m gonna regret saying, imagine a secnario where Tony work with Banner and they use Banner´s
brain patterns for Ultron.