CALENDER OF MARVEL AND DC COMICS MOVIES

:2017:

March 3: Logan (20th Century Fox)

March 31 Ghost In The Shell (Paramount)
May 5: Guardians of the Galaxy Vol. 2 
June 2: Wonder Woman
June 16: Kingsman: The Golden Circle (Fox)
July 7: Spider-Man: Homecoming (Sony release, Marvel Studios-produced)
October 6: Untitled Fox Marvel film (Fox)
November 3: Thor: Ragnarok
November 17: Justice League

2018:
February 16: Black Panther
March 2: Untitled Fox Marvel film (Fox) 
March 16: The Flash [Editor's Note: The departure of director Rick Famuyima has led to reports the movie may be delayed.]
May 4: Avengers: Infinity War
June 29: Untitled Fox Marvel film (Fox)
July 6: Ant-Man and the Wasp
July 20: Alita: Battle Angel (Fox)
July 27: Aquaman
October 5: Untitled DC/Warner Bros. film
December 21: Spider-Man Animated Feature (Sony)

2019:
March 8: Captain Marvel
April 5: Shazam
May 3: Untitled Avengers film
June 14: Justice League, Part 2
November 1: Untitled DC/Warner Bros. film

2020:
April 3: Cyborg
May 1: Untitled Marvel Studios film
July 10: Untitled Marvel Studios film
July 24: Untitled DC film (presumed to be Green Lantern Corps)
November 6: Untitled Marvel Studios film

Unscheduled: 

- Ben Affleck-directed The Batman solo film.

- Announced but unscheduled Deadpool sequel.

- Gambit (Fox): Delayed indefinitely due to script changes and departure of its second director. There are no recent reports suggesting the film is close to going into production, making Fox's next reserved date for an untitled Marvel film - October 6, 2017 date - increasingly unlikely. 

- Inhumans: Marvel removed the film from its July 12, 2019 release date though the project is not (yet) officially dead.

- Fantastic Four 2 (Fox): Several publications have reported the release date has been changed from June 2017 to TBD, and while there hasn't been any official confirmation by Fox, this seems like a very likely bet with the future of the current incarnation of the franchise very much in doubt.