Wild Zones seem blocked off by progress

Lumiose City is undergoing a major revitalization effort during Legends: Z-A, and it looks like some areas might not be accessible until you reach certain goals in the game. We can see some of the Wild Zones that Pokémon inhabit blocked off by numbered hologram gates. These might just be labels signifying where more powerful monsters roam, or they might require some kind of in-game signifier like a gym badge to let you through. Whatever the case, it looks like it won’t be easy to stumble into an area you can’t handle.