I know people often quote the devs distain for adding new races, but I am still a believer in another small race.
Lalafells are cute, but they need friends. Something small but with a different flare. This is why I think Burmecians inspired by Freya from FFIX would be the best option.
Yes, like the Viera the feet might have to change to be more inline with Hrothgar, but they would be cuteeeeee as all hell.
This game desperately needs another small race to rival the lalafells, and give the game more choice. As a short person who plays this game, and who has never felt like the lalafell were anything like my identity, I would be overjoyed if such a thing existed. Short doesn't have to be memed, or "cute" to exist. We can also be rather serious, and have whimsical expressiveness that go along with taller folk. Id really like the game to reflect this, because I am sick of being the butt of jokes. Yes, lalafell anxiety, and mistreatment by the fans does make me feel as bad as lalafell players feel, because I have heard similar jokes all my life. The way lalafells are treated as a laughing stock is similar to how short people, and people with dwarfism (a disability I have) are often treated. I want something different, something to show that small people are serious, and shouldn't be infantilized.
Ivalice moogles are another great contender as well. They look silly like moogles do, but have expressions that read as more than cute. I wouldn't mind them, but I prefer Burmecians as a race.