I am gonna counter Bourne directly by a bigger aspect (and I'll use Ghostbusters as a base example, don't consider it as if I know all):
Would you want to see a show that relies more on special effects; digital media; and peppers tricks, that wouldn't require as much of Action Horizons having to worry about an armory? Or would you want to cannibalize the WaterWorld Stunt Teams, reducing the usefulness of that show in turn.
I've been of the belief that there is simply no -practical- sense for both WW and Bourne to co-exist in the same park; due to the costs of equipment, armories, and similarities that the two shows have.