If all the rumors are true , and the big three from Marvel , Robert Downey Jr , Chris Evans and Chris Hemsworth are done after End Game
thats some pretty big holes to fill especially Robert Downey Jr who has been the focal point since the MCU started 10 years ago
so how do you replace that
well for one thing , you replace Tony Stark with Reed Richards , basically the same character
but...............
not as easy as it sounds , especially after two attempts already at the Fantastic Four
The tough part , and what they HAVE to do , is find the right actor , you need to find that next Robert Downey Jr , someone the audiences will buy into and love for the next ten years
which will be alot harder then it sounds , Marvel struck lightning with Robert Downey Jr , can they do it again
I think Reed Richards will become the MCU main character for years to come , and the Fantastic Four will become the bridgeway between the Galactic stuff like GOTC , Captain Marvel and the upcoming Eternals movie , and the Earth bound stuff like Spider-man ,
I know alot of fans would love to see John Krasinski as Reed Richards
I just hope one day the finally get Dr Doom , that will be another big casting news