Captain America: Civil War (2016): Based on the amazing graphic novel, this story will circle around the government wanting superheroes to enlist and register their secret identities. The movie will be slightly different because everyone knows all the heroes' identities. Expect an Ironman vs. Cap fight that should rival the Shakespeare in the Park scene from the Avengers!
Doctor Strange (2016): This one shouldn't be an origin movie, but will open up the magic side of the Marvel Universe, much like Guardians of the Galaxy opened up the cosmic side of it. Just don't use his arch enemy, Dormamu, in his first film and I won't complain. Also, Cumberbatch in a Marvel movie can only be a good thing.
Guardians of the Galaxy 2 (2017): More Groot and Rocket, obviously. Otherwise, keep doing what your doing!
Thor: Ragnarok (2017): This movie will either have our favorite thunder god fighting the giant serpent Ragnarok, or follow the comic and have the gods be destroyed and reborn with no memory. Oh, and more Loki, can't have a Thor movie without Loki.
Black Panther (2017): The king of Uganda will feature in Captain America Civil War, and will likely face an enemy we'll be seeing in Avengers: Age of Ultron. Ten points to who ever can find Ulysses Klaw in the trailer!
Avengers: Infinity War Part 1 (2018) Part 2 (2019): I just hope it doesn't turn out that I waited six years for Thanos for nothing! That would suck. Also, that second part probably means they can't defeat him alone and call the Guardians for the second film.
Captain Marvel (2018): The first female-led Marvel movie, Captain Marvel will follow Carol Danvers' adventures on Earth. Wait, Earth?! No, no, no, Captan Marvel is a space hero that often teams up with the Guardians, why is she on Earth? Also, I had this little conspiracy theory that Sky from Marvel's Agents of Shield was going to become Captain Marvel since the show has been featuring lots of alien (Kree!) related stuff. You'll see. Probably...
Inhumans (2018): The final movie in Marvel's Phase 3 is the Inhumans, Marvels response to the X-Men. The Inhumans are a race that has been hiding from humanity, and are exposed to a gas that gives them powers on their 18th birthday, or something like that.
Well, that's it! I don't know where Ant-Man fits in, although its probably coming 2016 or 2015 since they showed some few-second scenes in Marvel specials. Thanks for reading!