As I expected, a massive proportion of replies have an issue with Variants for history reasons. Both in the ‘buy’ and ‘not buy’.
I think this DLC is an ocean-size missed opportunity. ‘Sultans Ascend’ covers the most historical geography on Earth by far; yet the expansion includes NOT A SINGLE historical or archeological feature, NOT A SINGLE biome from the entire geography:
This could have been an epic expansion with only Byz, Japan & Persians or Mamluk civilizations and these ancient Wonders and biomes on maps.
They screwed up.