I too am a turtle, snd therefore highly evolved and adapted to deal with four turns a year

I want tos see seasons! That way we could have accurate seasonal weather. Rainy in Spring, sunny in Summer, etc.. It would also be nice to see Autumn leaves on the campaign map, as well as Winter snow drifts.

Personally though I really have no problem with even more turns per year, up to around twelve. I play the game for long term vaalue, I hate short campaigns. Even though I could steamroll the map after building up for a bit I never do, mostly because I just can't have fun with that.

From the perspective of roleplay, and 'putting yourself in the game' four turns is ideal.