Nice to see another Ayumi supporter, she's one of my top three wanted newcomers, now that Stafy and Sukapon are confirmed to be Assist Trophies, it's just a shame we have to talk, or rather fight, for a "retro slot". Nintendo has such a rich history, even when only counting video games, it's sad to see Sakurai seems kind of afraid to tap into it, especially when talking about Japan only characters. That's why Ayumi was cut in Melee and Marth/Roy nearly being only in the Japanese version, Same with Takamaru in Smash 4. Although none of that doesn't really excuse Lip not having had even simple trophy in any of the games, when her item has been around since Melee and her music theme since Brawl (and the fairy stickers even had their names wrongly localized). Just feels like a tease at this point.
I just wish Sakurai wouldn't be so afraid and we'd be getting more retro reps, obscure or not. Smash is the perfect series to give exposure to the old classics and it should be capitalized on. And especially nowadays, it's much easier to research a character and game series than it was back in 2000, with the internet having become a lot bigger, faster and stronger, too. And as a personal opinion, I find obscure and/or retro characters much more interesting than only going for safe picks.