Welcome to the rp!
I've been thinking about this rp and I came up with a few thoughts. I was thinking perhaps of a location where factions can meet up or at least their leaders for communication or some kind of sanctuary for them, considering the majority of the people are opposed to parkour they have a common goal despite if the factions have differences. And/Or some way of fast transportation to each city because it's hard to interact with just the people in your city when you might have someone in your faction in another city. Also, since it's the future and very technological, it might be nice to explain more about that. Like, specifically what they have nowadays such as fancy phones for easy communication or robots for the house, other such things. Just some idea's though, feel free to say yes, no, or possibly to any of them.