An idea to introduce the Fantastic Four into the MCU

Hi guys! 
I've been on this site for a while just watching, reading the news/fan-fics and comments and I decided that it was moment to finally join the community.
I thought the best way to do it was publishing my idea of how the fantastic four should be introduced in the MCU. 
Enjoy and feel free to share a comment bellow.
Thanks!

How to introduce the Fantastic Four into the MCU?
It was a dream come true when we heard that Disney was finally able to introduce the X-Men and the Fantastic Four into the Marvel Cinematic Universe, so our minds started to fly thinking about how they would be put together with the Avengers and the other teams in the universe. 
My idea is to introduce the Fantastic Four in the Captain Marvel movie, which, I undestand, will be set in the 90´s. 
I have the idea to put the character of a young Reed Richards (a.k.a. Mr. Fantastic), during his 20's, as a scientist recruited by the army or S.H.I.E.L.D. in order to study and analyze the powers that Carol Danvers acquired. He would work as a secondary character or "intellectial sidekick" during a portion of the movie.
Through this role, we can aknowledge how smart he is, the curiosity he has and his desire of discovery. During the film, Reed help Carol to understand the science and capacity of her powers and the real and theoretical dangers of the universe, here we could have a tease or a easter egg of the Negative Zone or Galactus or Silver Surfer or other cosmic power/threat/hero/etc.
At the end his role would be as small as the role of The Leader in The Incredible Hulk and the good part would be at the end of the movie during a post-credits scene. 

Captain Marvel's Post-Credits Scene: A Space Odyssey 
After helping Carol with her powers and saving the galaxy/world or whatever against the Skrulls, Reed Richards returns to his lab in the Baxter Building (a famous building in the 90's that was later demolished in the early 2000's because of the closure of the lab and the disappearance of its most important scientist), he is picking his stuff while thinking that it would be nice to have another epic adventure with exciting discoveries like the one involving Carol and the Skrulls. He tooks his things and walk to the elevator in order to get out of the building, he gets out from the place just to see a bunch of agents with black suits in the street surrounding a black car with the symbol of S.H.I.E.L.D. in the doors. 
An agent look at him and asks: Reed Richards? 
Reed only says yes with a nervous tone. 
The agent open the door of the car inviting him to get in and says: would you like to go to space? 
Reed's reaction would be just a big smile and then cut to black.
"REED RICHARDS WILL RETURN"

And thats my idea of how the F4 should be introduced in the MCU, an explanation of why they haven't shown if the space mission took place in the latest 90's should be because they were trap into a black whole or worm whole or the negative zone where they acquire their powers and then they return to Earth because of the power of the infinity stones or because the black/worm whole throw them in the future or stuff like that. 

Thanks a lot for reading!
Share your opnion in the comments!