This could be achieved via chimerism like I suggested above! So obviously, full support. It only makes sense for trade winds to be able to have multiple patterns like this. After all, in real life it happens with plain torties and calicos all the time - not to mention "actual" chimeras.

frog cats just for me..... i dont even know what thatd look like i just like frogs and cats
possibly wing cats but different from the ascended ones? maybe like flying squirrel like 'wings'?

Everybody, consider: Nudibranch cats

also, huge +1 to moth cats

I would like to propose some sort of countershading type marking! Countershading is super common in animals (including many cats) where the dorsal side of the critter is darker and the underside is lighter in color. Likely this might take the form of a pattern/solid allele that is co-dominant with pattern (so pattern [YY/YN], countershaded only [CC/CN], pattern with countershade [YC], and solid [NN]) since I think it would work best when paired with various markings rather than being its own separate mark, but that's just me hypothesizing, take with a grain of salt ^^

I own a pair of very lovely and heavily countershaded brown tabbies, and the options for imitating them on site look very little like them due to the lack of countershading. Watercolor does a little bit to break the coloring up, but since it's splotchy like tortie markings it doesn't have quite the same effect. This is just my quick mock-up to hopefully convey my idea - normal classic brown tabby on the left, countershade concept on the right :3c

Kitsune cats with many tails

Cats with two visibly different colored eyes! So I can have my IRL cat in-game

So every time I see it implied that a cat that has relatives is considered worth less, it hurts my heart a lil given how important bonds are to not-cats. As such, a way to add 'value' to some of these kitties is perhaps some gen 2+ only whitespotting marks?

Halfsies


they could crop up randomly, maybe from the van or left type markings?

ALSO
Whitespotting but black as a thing?

edit:
a second, more organic looking version

Mushroom not cats not like the fungus pup but like not cats that have become fungus like

im not sure if this has been suggested yet, but maybe some sort of way to implement heterochromia? on albinos or otherwise? :0

I want to add a vote to countershading!

also: multi eyes, and mutitails