Exists

You can find new outfits in towns at the immortal wardrobe, they're cosmetic but can look pretty neat.
We have rings already and they're super important cause its where you put your stuff! And the better the ring the more space and security against theft.
As for trinkets we have the artifacts that we can craft and use during battle, or you can steal one, or be bribed with one, or beat someone up and take theirs. ( I got three at once that way, but I also took everything else he had in two-three prior fights) One thing I can't help with is artifacts with spirits in them. I took one from someone and the spirit was just gone, I went to the pagoda and cleared it but wasn't sure what to do after either. So good luck