Obviously, I ain't Jaredan, but I would imagine with the upcoming event, there'll be a lot of Rioters on multiple teams waiting to see how the full Bilgewater event goes. A lot will depend on what goes down well with different kinds of players (and what stinks) and that'll be an awesome amount of learning and information to inform all future events :D
I.e. I don't have the answer to your question, but I think we should find out what we like and dislike about the Bilgewater event, before hoping for another just the same. :)
Giving feedback on the whole process (including things like the 'Building Butcher's Bridge' post today, and all future parts of the event), will help guide the next event!