Welp. Looks like the dream's dead. Again. To be fair, even if they did do 1st parties, we'd still have to get around Sakurai bias.
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Edit: Real shame that we couldn't even go a week thinking that we MIGHT not be less likely than Shrek and Goku.
Bruh what are you talking about? How does this quote suddenly deconfirm the Dee? Just because Smash Ultimate is a way to discover new characters, doesn’t mean that first parties are disqualified. Isabelle is the staple of Animal Crossing and was added after Villager. (Maybe not staple, but the consumers who knew about Animal Crossing from villager surely already knew about Isabelle.) The quote you provided, even if it’s from the president of Nintendo, has absolutely, positively no effect on the likelihood of Bandana Dee, much less killed the chances. The developers still want to give us the best experience possible with this game, which is why King K. Fool and Banjo Kazooie are in.
Quick sidetrack: how exactly is including Banjo Kazooie in Ultimate a good deal for the Banjo Kazooie series? It isn’t. Microsoft will not be making Banjo Threeie, so it isn’t “introducing the players to new series”. The real reason: everybody loves Banjo already. Microsoft is getting paid a portion for all of Banjo’s downloads (don’t quote me there), which is not used to further the Banjo series, but for other ambitions. Sure, Hero and Joker introduce players to the DQ11 and P5R, but it isn’t a commandment that all characters need to further an agenda.
Who said that “every” single representative had to be from a new series to “introduce to Smash Bros fans?” Nobody. And that isn’t even the case, as thus proven. The developers, more than anything, want us to fully enjoy Smash Ultimate. And if they see fit, they are allowed to add in a first party, or Bandana Dee if luck is on our side.
TL;DR: in the nicest way possible, your quote means nothing to me. No official deconfirmations; just restating the purpose of the Fighter Pass, which we have already deduced for quite some time.