A different idea for an RP

OK. Since my idea with the Crossover Sagas RP has failed, I am willing to start another idea.

The setting will be in a world untouched for quite some time. The main story in the backstory explains the appearances of the demon race in the world, and a great war that waged for 400 years before the demons' defeat. 400 years later, the demons return and several heroes are sent into the new war via black holes activated by human leaders. After a while of fighting the demons, the heroes learn of the demons recuiting villains as soldiers for their army, and the conflicts rise.

Defeating the three demon supersoldiers, Hyulkonton, Bad News and Murdoch, the group learns more of the locations that are demon territory, and head off to destroy three command towers, which the three supersoldiers were each guarding. After taking the command towers down, the master tower is left to go. When the leader loses for the first time for a while inside the main generator room, he makes a last ditch effort to destroy the world on a space station with a large cannon. Defeated on the space station by our heroes one last time, the cannon is destroyed, and any ideas for a new arc will begin.

What do you think?