There have been trailers, bonus scenes, teasers and (counting Wonder Woman) three whole movies leading up to it, but fans still know very little about the Justice League movie.
Notably, the trailer makes use of clips featuring both the original 1970s/80s and 21st Century reboot versions of Freddy and Michael.
At this time, the Friday the 13th franchise is said to be closest to re-starting, but with no creative team currently attached.
Revivals of all three franchises have been in the works for some time, but failed to materialize after a series of behind-the-scenes delays for each property.