Balance in HotA.

It would be better to create a generator for fundamentally different types of maps, ones that don't compete with the existing generator.
For example, a generator for sea maps would be very appropriate.

And what other new types of maps could there be?

Unreal. Any small thing could trigger it, like "he has a skill that increases SP by 5 cells, so the Moon broke the block a day earlier."

Yes, but it could reduce the need for restarts to ~0 (saving up to an hour) and significantly improve the balance between zones, thus gaining the advantages of both mirrored (partially) and asymmetrical templates at the same time. In my opinion, right now it often turns out that one player has a good start, while the other has nothing, meaning it's not just that one has "archers" and the other has "melee units," but rather one has "archers + melee units," and the other has a shrine level 1.