Something I have noticed about the newer Mortal Kombat games, aside from the dumb costume choices for MK 11 is the new tradition of including horror characters as DLC guest characters in every installment.
MK9 had Freddy Kruger while MKX had Jason Voorhees, Leatherface, Alien, and Predator, and the newest MK game has Spawn.
The issue is that with the Disney buyout of FOX, we probably won't be seeing any return appearances of Alien, Predator, or other FOX-owned franchises like Terminator since Disney is notoriously stingy with licensing their IP's.
However, I do have an idea for guest fighters as DLC in the next Mortal Kombat game. Maybe not as main headliners, but they could be included as part of a DLC with other Warner Brothers-owned horror characters.
I'd include Count Von Tokentakker and Evil Marie from the old 90's light gun game CarnEvil as guest fighters.
Yeah, it's obscure as fuck but it is horror-related and more importantly, CarnEvil is a Midway franchise that is now owned by Warner Brothers so there's not an issue with licensing costs or other legal hurdles.
Apparently, the same deal that allowed WB to acquire the Mortal Kombat IP also included the rights to CarnEvil and a few other Midway games from back in the 90's.
I know it will never happen, but there's nothing keeping it from happening other than the age and obscurity of CarnEvil.
On that note, I miss light gun games. Shame that Time Crisis 5 still doesn't have a console port, so it might as well be Japan-exclusive.