Most if not all incorrect appearances in the game have now been fixed.
The preview image for this article show all the appearances that have been fixed.
I don't know of any others, though I know there are still some characters wearing the wrong gear here and there.
Patches will be released when more is fixed, I want to try and get everything fixed up and ready for me to implement new content.
Edit : The image can be seen at Moddb.com
All of the Outcasts in the Undercity now have the correct appearance, as do the three absent patrons of the Upper City Cantina ( Christya, Niklos and Femduel001.utc ) and there is no longer a Trandoshan in the Dantooine Jedi Academy.
As well as that, the party of thugs that accompany Canderous in the Undercity now have the correct appearance.
That's pretty much it for the time being, there have been a lot of other fixes but more up to date information can be found on the Discord server for the project.