>>53409668California, New England (NOT Unova/NYC-NJ based), New Zealand/Australia, another Japanese region (Chugoku or Shikoku).
I could also see another European region being chosen, but that's getting kinda boring imo. Not deep enough and they never capture the nuance of the real-life regions.
California Region Highlights:
- Mojave Desert inspired area in south
- Tropical beaches based on La Jolla Shores and Malibu
- Catalina Island catching reserve/national park
- Plentiful bridges (Big Sur, GG, Bay Bridge)
- Wooded northern woods (Muir, Tamalpais, Redwoods)
- Far north Volcano and snow mountains (Lassen and Shasta)
- Large Tahoe-inspired lake
- Huge array of landscapes to choose from and design based on real-life ecosystems.
New Zealand / Australia Region Highlights:
- Two separate islands for NZ area
- Good array of environments to pick from
- Wide selection of wildlife to be inspired by
- More tropical feel in some areas, while more rustic in others
- Lots of potential post-game areas