How desperate is Marvel to get bums in seats? Desperate enough to bring back Robert Downey Jr. for Avengers 5 as... Doctor Doom?

Oh dear, it looks like Disney is a bit worried about the future of the MCU, as it's bringing back Robert Downey Jr… but as fan favourite villain Doctor Doom. I'm over in the UK, so when I went to bed last night knowing that Marvel's Comic-Con panel was happening, I thought to myself "how bad could it be?" It felt obvious that the company was going to pull something big, given that it hasn't been at San Diego Comic-Con's Hall H in a little while, and considering the fact that the MCU has been w...