Music is a good reason why there shouldn't be a remake
Much like horror today, Demons was catered to the teens with it's music, hot girls, punks, gore, and flimsy but exciting story. For some reason this just worked better in the 80's and I really think music is a big part of the Demons movies.
I like how they went with heavy metal for the first movie and then went in a Punk and New Wave direction for Demons 2.
She melts in your mouth, she melts in your hands.