I would've made EMH Iron Man the older version of Armored Adventures Iron Man. Both shows share producers and its a way to bring in Tony's complexity for a kids centered project.
Beyond that he's fine. I think he just needs more interesting villians. I liked the idea of him marrying Emma Frost so I'd explore that. It's a good ol fashioned political marriage.
Someone else pitched a better way to synthesize Tony's business man origins with his current status quo. So I'd follow their lead.
Someone pitched an Avengers in the 60s project on Syfywire so I'd have Tony fill the place of his father during WW2. It might push Tony to be in his 40s when Cap wakes up but I think it helps sell their dynamic. Tony is a lifelong friend of Steve but he changed while Steve was away.
I'm fine with Tony creating his own villians. It fits who he was before his origin. He stepped on a lot of people to get where he is.