No, don't go suggesting to just expand the current maps like Tacano or the Tacano Research Facility just because they already have giant lakes in them, like what some on Twitter conceptually made last year as below with the Isla Tacano map.
Source: https://twitter.com/steamblust/status/1043883833265967104
Redesigning the current in-game maps would with out a doubt mean "
breaking" every single person's saves on main campaign, challenge, and sandbox saves with those specific maps. How many people in the entire world who bought and play this game, including my little brothers who play this game on their PS4, would think destroying their saves is the "fair way" just to include new exiting stuff like in those Twitter images above? I'll bet you
very,
very,
very few of them.