The plot would be so stupid for them to all come together and work with each other i don't see it working...talk about overkill tho, can't go to sleep cuz when u do Freddy is waiting but then when u are awake u gotta watch out for Jason, Michael Myers, Chucky, Pinhead, Candyman,etc....nikka wouldn't stand a chance.
Btw they had a shot at doing this in Freddy vs Jason. After they initially fight each other i thought Freddy could have asked Jason to be his right hand killing machine(but more like his lap dog doing his dirty work)...but there would be no reason for it. Its easy to do the Expendables cuz we talkin bout the actors teaming up...the horror characters themselves wouldn't ever team-up in a plot that wouldn't throw out the fact that these nikkas just kill everybody and don't even have real reasons why lol. Add to all that the fact that none of these bastids can truly die(ie the end of Freddy vs Jason) and while i agree the movie could technically be made i personally think the plot would be garbage....but then again aren't all horror movie plots garbage just for the sake of the violence and body count
Ya know what....it could work and nikkas would pay to see it.