DC and WB are filling in the gaps and blanks in the movie schedule they previously announced.
Batman v Superman: Dawn of Justice – March 25th, 2016
Suicide Squad – August 5th, 2016
Wonder Woman – June 23rd, 2017
Justice League – November 17th, 2017
The Flash – March 23rd, 2018
Aquaman – July 27th, 2018
Shazam – April 5th, 2019
Justice League 2 – June 14th, 2019
Cyborg – April 3rd, 2020
Green Lantern – June 19th, 2020
(from http://screenrant.com/dc-movies-justice-league-wonder-woman-release-dates/)
A few interesting things here. First, no solo Superman or Batman movies scheduled. Second, a rebooted Green Lantern. Third (and biggest), we finally get a Wonder Woman movie (even if it will be New 52 demigodhood in her origin).
(Indeed, that ups the pressure on Marvel to get a woman-leading movie onto their schedule. Ditto a minority-lead film, with Cyborg now on the schedule, too.)
It’s fascinating watching both sides here lay out such elaborate plans over such a long period of time. All are subject to change if the market changes (or certain films tank), but it’s still highly ambitious for both corporations.