Battle of the Ancients: A underworld based Idea

Ok, I guess I should test the waters here.

My Rp idea is based around underworld, you know the war between Lycan and Vampire. The underworld series holds a deep place in my heart and this idea came from something I've been thinking for a while.

It would be a free roaming rp, such as you can do your own things. The main plot would stream from A four way war between Vampires, Lycan's, Bloodwolfs (Half Vampire, half Lycan) and the human group V.A.L.E (Vampire and Lycan extermanation squad). The setting of this great battle would be in a rural town surronded by forests and caves. The vampires would have a mansion as there base in the town itself while V.A.L.E would be located in a base someway out of town.

My main question I suspose is, How many people would be intrested in it?