Hello, I think we should also add Cherokee and Inuktitut fonts. I do not have time to search free fonts now so I let this message here.
Topic on Talk:Universal Language Selector
I doubt anyone will do it for you.
Indeed. I do not know if Inuktitut and Cherokee are now included but if it is not the case, you can try to add it with the GNU FreeFonts (https://www.gnu.org/software/freefont/). It is wirtten that Cherokee and Unified Canadian Aboriginal Syllabics are managed.