MockingJay didn't involve the 'Hunger Games' as Katniss was resued from the arena in Catching Fire (which was actually a beach/island set up with 12 traps that cycled around each hour), so there isn't anything to base the next map off. The only way you could continue the story-based maps is to either have a map set in the underground tunnels of DIstrict 13 or in the trap riddled city of the Capitol. I hope that someone comes up with a new arena that is not based on the books because it will stop a lot of people complaining about features in the books that aren't present in the Survival Games themselves (eg; sponsoring systems, GameMakers controlling rounds etc)