Christ, 3 movies a year? I don't want to sound like a downer, but at some point I think audiences are going to start losing interest in comic book movies if they flood the market to such a degree. I know people have been saying that for years, but we're at a point where it isn't out of the question to expect 7 comic book movies a year to be routine ( approximately 3 Marvel, 2 WB, 1 Sony, 1 Fox). I don't know...maybe I'm just being pessimistic. I'm going to be REALLY interested to see how well Ant-Man does at the box office, as I think it will go a long way to indicating how open the general audience is going to be to some of Marvel's more obscure heroes.
I don't think an over abundance of a certain genre necessarily turn audiences off, else they'd have stopped making dramas, romantic comedies, etc years ago (after all, how many of those come out each year?).
As long as Marvel keeps their films fresh, exciting, and quality-made, worthwhile films, they'll be fine. The other thing is Marvel have already taken a number of different genres and combined them with the general super hero film thing: Cap's movies have been war time and political thriller, Thor largely fantasy inspired, Iron Man advanced tech inspired, Hulk inspired by monster movies/Jekyll & Hyde, etc. Guardians will bring the space opera avenue, Ant-Man a sort of heist film, etc. And all have had varying elements of comedy, drama, and character growth. I think that as long as they keep Feige in charge, who has a great knack of overseeing the overall universe in a meta sense, while also having a very clear vision of how each movie stands on it's own while building the larger universe, and hiring the right script writers, directors, and actors to bring it to life, audiences will keep coming back for quite awhile.
Besides, the train shows no signs of slowing anytime soon. The box office numbers for the films are everything from strong to blockbuster. The critical reviews for most of the films are strong. And the hype surrounding the MCU films remains as strong as it ever was, with hardcore fans and general audiences still strongly interested in details of films in production. Just look at the amount of people online eagerly awaiting news of the films in production and announcements of films to be in the MCU at this weekend's Comic Con.
I think the analogy Feige made to the James Bond series is especially accurate in that sense. Those movies have been coming out for over 50 years now, and the last one (Skyfall) was the most financially successful yet (as well as arguably the best reviewed in the series). Granted they only come out on average every few years, and Marvel is far outpacing that with 2 films per year currently and 3 per year starting in 2017, but they've also got exponentially more characters to use, worlds to explore (in regards to the cosmic side), and worthwhile stories to tell.
I assure you, the Marvel films will do just fine for the foreseeable future. Once Feige steps down that may change, but I think he genuinely enjoys what he does and plans on sticking around for awhile.
The real test for the MCU's expansion will be how well audiences receive the multiple upcoming TV projects, in addition to the already existing AoS show. Agent Carter, Daredevil, Jessica Jones, Iron Fist, Luke Cage, The Defenders, all in a two or three year period (January 2015 to mid or late 2017). The movies will do fine. The TV shows on Netflix likely will as well, though AoS needs to step up it's game.
