I watched all of this video (more specifically, I had it on in the background) that discusses characters' likelihoods. And he ranked them all.
He had some solid takes but also weird ones.
For starters, I don't agree all those characters are more likely than Bandana Waddle Dee. He says it's cause of Sakurai bias, but even if Sakurai still is the developer, Dee should be higher for his popularity and relevance. He also claims you can't do much with a spear, which.....just feels wrong.
Raven Beak depends on timing, but might not be picked even if the timing
is good for him. Certainly not a guarantee like he claims. Rauru should also be lower. Krystal has some popularity but not as much as other requests, and with Star Fox not having recent games, I don't see her as likely. And with Heihachi being passed up once, I don't know if he'd be considered again.
Meowscarada would deserve to be up there if there weren't other Gen 9 Pokemon to consider. He also refers to Eevee as the secondary mascot of Pokemon, but I say that's moreso Charizard at this point. Eevee is probably #3, though the troubles with including its Eeveelutions should make it lower in chance.
Finally, he's weirdly confident in Sukapon.
Regarding this, I've been thinking about the shape of the Kirby series during each Smash game's dev cycles. Back in Brawl, Kirby was a fairly minor franchise that hadn't had a big, series-defining release in a long time. It was just a consistent little series of low-end games, so getting Meta Knight
and King Dedede was arguably quite generous, even if they're the other main chatacters of the series.
By Smash 4, the series had established itself with RtDL, but 4's development plan was set around 2011-2012, so RtDL was kinda it for major releases. At the time Bandana Dee had only been playable once, and when Triple Deluxe released in 2014 he was just the food carrier NPC, so even if he was decently popular he didn't have as much prominence. At most you could argue for an Epic Yarn stage - Which was actually planned, mind you, but was ditched for the Great Cave Offensive when Yoshi's Wooly World was announced. And from a corporate and a game design perspective, that's understandable - Wooly World was an upcoming title they probably wanted to push, and I can understand Sakurai wanting to avoid having an overlap in the stage list. I can see Sakurai trending towards the games he personally worked on, but it's important to remember that Kirby wasn't a system-defining series yet, and it didn't
need too much new content the way the likes of Mario, Zelda, Pokemon, or even major early 3DS games like Fire Emblem and Kid Icarus would've warranted.
When Ultimate was set, the most recent game was Rainbow Curse, maybe Planet Robobot depending on when exactly the plan was finished. By this point, Kirby had been growing in prominence, and Bandana Dee had at least developed a consistent string of appearances. Even so, Kirby hadn't become a truly big name yet, and Bandana Dee's only other playable appearance was in Rainbow Curse, a spinoff title. Ultimate's newcomer and stage selection was extremely crunched too, so there was extremely little room for new content as well. The most we got was Marx as a boss, and he's got more going for him beyond "Sakurai bias" - Kirby has little in the way of recurring bosses, and Marx's moves had been referenced quite a bit throughout the series, so he has some of the most legacy out of the bosses at the time. Bandana Dee had some decent support by then, but he evidently wasn't smashing the ballot the way Ridley, K. Rool, or Sora did.
But now? Kirby's cracked the 10 million copies mark on the Switch in terms of overall sales, and that sets him as a solid B-list series, above the likes of Fire Emblem, Metroid, and Xenoblade. Kirby and the Forgotten Land is the first game to outsell Kirby's Dream Land in
30 years. Bandana Dee has continued to make consistent appearances as Kirby's definitive No. 2, showing up at the start even when Meta Knight and Dedede are absent, unlockable, or unplayable, and his support base has continued to grow. At this point, it's hard to excuse not having any new Kirby content. If we go another game and there's still no recent kirby content,
then I'll start worrying about the alleged Sakurai bias.