Update: Trailer is out
Release date is October 25th.
Crossplay and no season pass: https://www.eurogamer.net/articles/2019-05-30-call-of-duty-modern-warfare-will-have-crossplay-support-no-season-pass
The CoD twitter page released a "Going Dark" teaser for the new Call of Duty which is will be CoD: Modern Warfare. In this teaser they also announce that a full trailer will be coming tomorrow.
Also on the youtube page people were able to use the preview feature for videos and this revealed that the game is coming October this year.