I wanted to do pool rooms in vanilla but thought the interconnected layout would be too challenging to plan on a 2D engine. If anything E3M7 and TNT MAP29 do have something resembling pool rooms.
New Doom games are always welcome. They only need to drop the boring action-adventure map format from the last two games and replace it with more compact, interactive and unpredictable map design.
There was this Doom episode speed run video where the demo played on the upper slope isometric perspective but can't find it anymore. It was uploaded 5+ years ago.
Autumn. This may be an odd pick since it used to be my favorite season for a long time. I still like September when the weather gets colder and the environment more colorful but from mid-October the air becomes dank. It gets repetitive with the long nights.