I don't see any reason to bring it to a close anytime soon; besides, there's still room to add to the story. Dante remains on the loose. We could have Maximation attempt to bribe one of the other Hybrids into helping capture him? And if that plan  were to backfire, it's definitely something to work with and build on. Or perhaps the ones in custody manage to escape? We could also play around with the NPCs or add more characters. Let's say, for example, there are other Hybrids currently out on missions who somehow find out about this?