There's a lot coming in 2018 (a lot of which is straight to VOD unfortunately) and there are some highlights. These are the titles I'm looking forward to the most. I'm linking to Where You Watch because they've got trailers for each of the title.
The Gallows 2
Cadaver
Creep 2 (I don't know if this one has actually got distribution)
Desolation (poster of the year!)
Insidious The Last Key
Psychopats (although the reviews haven't been too kind)
Slender Man
Summer of '84 (not a strict horror, but still looks very interesting)
The House with a Clock in its Walls
The Lodgers
Tragedy Girls