Dasher, what about Cap 4?
Derp, let me revise this. I'm guessing Marvel can do four films per year by Phase 4
2015
Ant Man
2016
Captain America 3 (Spring, Bloodstone Hunt as plot, Zemo, Songbird and Taskmaster as villains, Diamondback as new supporting cast member)
Doctor Strange (Summer, origin story, Dormammu as villain, Wong and Clea as supporting cast)
Thor 3 (Holiday, original story, Enchantress as villain)
2017
Hulk 2 (Spring, original story, Red Hulk and Leader as villains, She-Hulk and Rick Jones as new supporting characters)
Captain Marvel (Summer, Origin Story, Yon-Rogg as villain)
Black Panther (Holiday, Origin Story, Moses Magnum as villain)
2017 TV shows
Daredevil Season 2
Heroes for Hire (Luke Cage, Jessica Jones and Iron Fist as an ensemble)
Moon Knight
Punisher
2018
Black Widow (Spring, Homecoming as plot, North Institute as villains, Hawkeye as supporting Character)
Guardians of the Galaxy 2 (Summer, original plot, Magus as villain, Phylla-Vell and Adam Warlock as new supporting characters)
Avengers 3 (Holiday, preferably Thanksgiving weekend, Infinity + Infinity Gauntlet as plot, Thanos as villain. And at this point, Daredevil, She-Hulk, Doctor Strange, Ant-Man, Wasp, Luke Cage, Iron Fist, Captain Marvel, Falcon, Winter Soldier and Black Panther join the Avengers but its okay since most of them are going to die anyway with only a few remaining characters by the beginning of the third act. Then they all come back to life anyway.)
Phase 4
2019
Iron Man 4 Spring (Spring, Armor Wars + 5 Nightmares as plot, Zeke Stane and Ghost as main villains with the REAL Mandarin working behind the scenes)
Doctor Strange 2 (Late Summer, Original story, Shuma Gorath as villain)
Thor 4 (Holiday, Thor Disassembled as Plot, Loki and Surtur as villains, Hela and Baldur appear in Hel post-credits. This is the last hurrah for Chris Hemsworth in the role)
TV series for 2019
Daredevil
Punisher
Heroes for Hire
Moon Knight
Hawkeye
2020
Guardians of the Galaxy 3 (Spring, Kree-Skrull War as plot, Kree and Skrulls empires as antagonists but not exactly villains.)
Captain America 4 (Early Summer, Viper and the serpent Society as villains)
Captain Marvel 2 (Late Summer, War of the Marvels as plot, Moonstone as villain)
Blade Reboot (Autumn, preferably in time for Halloween, Xarus and Dracula as villains)
2021
Black Panther 2 (Spring, Enemy of the State as plot, Klaw as villain)
Hulk 3 (Early Summer, Planet Hulk as Storyline, Red King as villain)
Inhumans (Late Summer, Inhumanity as plot. Maximus as villain. Aftermath of Avengers 3 caused most of the Phase 4 films to deal with Inhumans popping up around the world.)
Avengers 4 (Holiday, World War Hulk as plot, Hulk as villain. Crystal joins the Avengers. Not all Avengers return as Thor is now dead, Black Panther is dealing with poor relations with the United States, the Guardians are all off in space, Black Widow is living in New York with Daredevil and tied up fighting crime, Hawkeye is away on SHIELD business, Luke Cage and Iron Fist are off running a private investigation firm, War Machine's gone rogue, Quicksilver is visiting the Inhuman royal family as an ambassador, Nick Fury is off doing paperwork and Winter Soldier is on trial. The roster this time is Iron Man, Captain America, Captain Marvel, Falcon, Doctor Strange, Vision, Scarlet Witch and Crystal. That's a big enough cast.)
New 2021 TV show
Runaways