Well the game is out and luckily the rumors weren’t true.
With a medium-density city, I get about 40 FPS @ 4K in the sequel. With the same-sized city, I used to get 20 FPS in the original, so twice the FPS is a massive improvement IMO. But people are still salty cause we live in a world where anything less than 60 FPS @ 1440p is unacceptable. Which is stupid as fuck cause you don’t need 240+ FPS in a city-building game with next to no action in it that would require such a high framerate.