Here are some posters, dates, and trailers of some upcoming horror movie releases (note due to the delay of some movies I left the trailers up for now but the dates for some movies have changed)...
Other future releases:
The Crooked Man
Addams Family 2 (Oct 8)
Dune
The Forever Purge (July 9)
Don't Breathe 2
Great White
Hotel Transylvania 4 (Aug 6)
The Conjuring: The Devil Made Me Do It (Jun 4)
The Collection 3
Halloween Kills and Halloween 3
Paranormal Activity 7
The Conjuring: The Devil Made Me Do It (Jun 4)
The Collection 3
Halloween Kills and Halloween 3
Paranormal Activity 7
The Night House
Malignant