This was just something I thought would be funny/cool/ironic to see.
Marvel Studios already has one of the old Fantastic Four members in their MCU and that's Chirs Evans' Captain Amerca. He was the Human Torch.
Just think, how weirdly cool would it be to see the old cast together again in the MCU?
Mr. Fantastic could be Doctor Strange
Invisible Woman could be Spider-Woman
Dr. Doom could be the Punisher
The Thing could be Executioner
While this was meant to be a joke, these are good castings are they not?