Earlier this week, news broke that Joss Whedon would continue his role as writer/director of the Avengers 2 as well as contributing to a brand-new Marvel film-universe television series on ABC. Further details have come out since and by the looks of it, Marvel and Disney have handed Joss the keys to the city.

io9 reports that Whedon has signed an exclusive three-year contract with Marvel, locking him into their works during that duration. That’s mildly interesting, but there’s one key portion to the agreement that’s worth noting:

The three year contract, according to Marvel, means that Whedon will “contribute creatively to the next phase of Marvel’s Cinematic Universe.” You can assume that means Whedon will be involved, at some level, in the scriptwriting of the movies between now and Avengers 2 — especially the second Captain America film and Guardians of the Galaxy.

io9 goes on further to break down why Whedon’s involvement in all of the films moving forward is critical:

The main takeaway from Marvel’s announcement, though, is the notion that Whedon is joining a very small group of people who make the big decisions about the direction of the shared universe that includes Marvel’s movies and this new TV show. This comes at a crucial phase, when most of Marvel’s films are going to be sequels rather than origin stories, and at least half those films (Thor 2 and Guardians) are likely to be insanely “cosmic,” with the obvious risk of falling into the Green Lantern trap of excessive CG and flat characters.

So most of all, Marvel’s on-screen universe is going to have to stay grounded, something that Whedon excels at because he understands that the best stories are “about us.”

For long-time Whedon fans, this is all great news. Finally there’s a studio that’s going to stand behind Joss, his fans, and his process. For fans of the Avengers films, this is going to likely mean much tighter narrative control and cohesion from film to film.