Those are actually good points. Perhaps we could use an "Ironman Mode" like in XCOM 1 and 2 for higher difficulties, only 1 save per turn with this turn's seed saved automatically, while lower difficulties still get no seed saved at all. Or maybe make ironman an available option that it is available to all difficulties.
I feel like the save one turn ahead seed would work best on tactician and higher. No need to be restrictive on classic or explorer.
Or as you said, it could just be an option at each new game:
To seed or not to seed, that is the question!
