I think that at this point (and maybe always?) we should consider features based on whether they are crucial for playability, balance, completeness, or enjoyability and not based on whether they would be cool to have.
For example we need an overall theme for completeness, but something like environmental shift just doesn't seem crucial to the game.
On the other hand, if we approach it from this direction it could work:
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The player who goes first has an advantage, how do we balance that?
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Have a cycling environmental shift, and shift it in player 2's favor at the start.
But then I'd probably be inclined to reject that in favor of something less complex and game-altering.
Relevant: What guidelines should we follow when considering a feature?