Hatching-tide 2023 tidbits.
According to Hamlyn the Nymians turned tonberries aren't true tonberries. I also suspect that he's a Seeq. No other race makes snort noises let alone that much. I suspect the Slyphs know he's a Seeq too as they complain that the tusked one(s) get to enjoy playing tricks and the festivities but they don't get to. If pixies exist on the source somewhere I am full glad they haven't made themselves known with any of the other festivals. As having to deal with Slyphs, possible Spriggans aaaaaaand pixies would just be such a headache.
Post quests we have Erenville meeting our bunny quota. He says Hamlyn basically pounced him and made him put on the tonberry costume. I first thought the one labeled as Moon was a bunch of loporrits in a trench-coat. Only to realize that it's Yellow Moon who I guess got offered some tea by I'm going to assume was Mother Miounne. Redolent Rose continues their love of wearing costumes as he stands next to Yellow Moon. If you have at least the Faculty of Archaeology done you'll find professor Rurusha, Boric, and professor Namono Tayamono. They're in the area to explore the ruins of thr Black Shroud. Rurusha gives a shout out to the Faculty of Aetherology unless I miss remembered and they did say Anthropology which would make more sense as those two were more interested in culture customs than the Fish guy.
We have both A-Ruhn-Senna, Raya-O-Senna and at least two moogles in a trench coat er tonberry outfit. Alka Zolka and Setoto are also enjoying thr festivities. To wrap up all of the npcs we have a Slyph wearing a tonberry outfit who just wants to enjoy the festival and not want to cause harm. I think you need to have at least unlocked Scholar to get the "I know some Tonberries" option at the start of the quest.