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Reposting without text blocking the images.
The ones I can see happen are the Lighthouse,, Wallace & Gromit, and maybe the roman ship.
Gravity Falls, Among Us, Jumanji, Red Dwarf, Avatar, not big or currently relevant enough (among us might disappear in a few months like Fall Guys did)
Colosseum and Police Station were done already; also Lego is never to make a Modular under the Ideas label so the Car Wash is also out.
Plane, MRI, racecar, garbage truck, colorful game thing, milwaukee musem, blue car are boring.
Bag end is from a retired theme.
Spirited away, little venice, viking village are too large.
Classic castle is also too large and it's derivative of the upcoming blacksmith, which Lego officially said is disqualifying.
Addams Family mansion would be nice and it's a timeless classic but it's already been turned down more than once so probably not. I would say it's also too big but it's licensed so it's not a big deal (see the upcoming Home Alone set)