Ahoy Captain Cats here and let us talk about the man, the myth, the legend himself Keanu Reeves. According to a lot of sources, it was stated that Marvel Studios president Kevin Feige had approached Reeves many times to join the MCU, but to little to none success. Feige said this in an interview about getting Keanu on board:
“We talk to him for almost every film we make. I don’t know when, if, or ever he’ll join the MCU, but we very much want to figure out the right way to do it.” – Kevin Feige, Marvel Studio President
I don’t think he will ever be in the MCU anytime soon or at all since 2019 has been “The Year of Keanu.” 2019 has started on the right food for him with the success of John Wick 3, Always Be My Maybe, Toy Story 4 and with his appearance as Rockerboy Johnny Silverhand in the upcoming video game Cyberpunk 2077. Let’s not forget that after all of this, he still going to film Bill & Ted Face the Music or better known as Bill & Ted 3 AND John Wick 4 which is said to be released in 2021.
But I digress, if somehow, someway they do get Keanu into the MCU I can see him playing two Marvel characters, Moon Knight and The Punisher.