Get Laurence Fishburne a personal trainer and let's make it happen. lol
props!
But since Fishburne is already playing Bill Foster (Giant Man) in the next Ant-Man movie, I nominate Denzel. Also Harry Lennix if they want to go a little younger. Heck, Will Smith if he's not exclusive to Warner Bros. as Deadshot.
Maybe this could be Mr. Reggie's entry into the MCU as a director. It would be awesome, to have his origin story created and incorporated into an Avengers movie, or a spinoff like Captain America, Iron Man, Black Widow, etc. I wonder who could play John F. Kennedy. I'd really like to see their extended dialogue together, make it real Aaron Sorkin-intense.