Add new regional languages
There are multiple regional languages that aren't available as options when adding new localizations for a game.
I'm Spanish, and in our country alone we have several smaller regional languages, some of which are in danger of becoming extinct - and none of them have any presence in IGDB yet.
There are several initiatives that push for those languages to be brought into the modern era and, as such, many people are doing an enormous amount of work in order to localize as many games as possible to our languages, officially or otherwise.
It would help us out a lot if you were to include, at least, Catalan, Basque and Galician to the available options. Steam has already made it possible to list a game as available in those languages, so it'd be great and incredibly useful for IGDB to follow suit.