I've been watching some footage of Legends Z-A, and... how does this shit fly? How do people still consume this slop and think it's acceptable? If I worked for Game Freak (heaven fucking help me) and I was put in charge of this game, was told that the game had to take place entirely in Lumiose City, I would make damn sure every part of the locale would be crammed full of content in all parts of the city. Maybe separate the city into several districts and you unlock taxi stops and subway stations as you explore, maybe there are shopping arcades, rooftop sections, a sewer system with water and poison types, an underground tunnel with ground and rock types, an industrial part of the city with electric and steel types, a under-construction or abandoned part of the city with ghost types, maybe there would be a huge greenhouse or arboretum area that would act as the game's Safari Zone. Have twist and turns and alleyways between and behind businesses and residential homes that are fun and cool to explore. Maybe there's a huge shopping mall with coffee shops, clothing stores, book shops, a cinema...
You could do so much with just a city setting, and they chose to do nothing. A city that feels and looks lifeless, like it's a concept build you would show your boss in the first few months of development.