Leave it to Clark Gregg to come up with a plausible idea on how his character Phil Coulson could reunite with the six original Avengers, despite the events that occurred in Avengers: Endgame.
With Avengers: Endgame serving as a somewhat swan song for several of our superheroes, including Iron Man, Captain America, and Black Widow, the most heartbreaking part is that they never knew that agent Phil Coulson was still alive.
Having been somewhat of an anchor in the MCU, Coulson was there from day one, phase one of the franchise, and served as the “glue” that held it all together. The fact that he was the only original MCU character, having not been based on a prior comic book character, made him that much more vital and enjoyable.

Image: Los Angeles Times
He worked and fought alongside the original six Avengers, as well as his commander in chief Nick Fury. Then, in The Avengers, Loki stabbed and fatally wounded Coulson, and as such, he “died.” However, with S.H.I.E.L.D’s help, Coulson was “brought back to life,” a fact that none of the Avengers never learned.
Now with the Avengers story wrapped up, Coulson is a thread that, until now, was never thought to be able to wrap up. Or is it? Gregg suggests that the studio produces a one-shot, one-off, in which Coulson and Avengers are on a mission together. With this mission, the fans will know that the Avengers know Coulson is alive, and all will be well again in the world.

Image: Looper
If the studio considered the idea, the true difficulty would be getting Robert Downey Jr and Chris Evans back for it, as they are now officially no longer part of the franchise. This writer, for one, would love for Gregg’s idea to pan out, and finally, have some sort of closure on the character.
However, I am realistic enough to know that, in all honesty, it will never happen. But it is nice to dream that it could and what it would be like if it did.