You know, One thing I find weird is the lack of Certain Mii Costumes
Rex, Spring Man, Isaac, Skull Kid, are examples of Popular characters in NPC Positions (with the latter 3 being Assists) that got Mii's in base game. We know 3rd Party Mii Costumes were not Base game
There are characters like Alucard, Shovel Knight, Bomberman, Shadow the Hedgehog, and more that are 3rd party and in NPC Positions, and yet their hypotheitcal costumes have not come in a pack. Tails, Knuckles, Zero have costumes but they were costumes in Smash 4. We see with Goemon that they are willing to add Requested (even if Goemon is more niche request) characters from 3rd parties as miis, and Squid Sisters is a New Costume of a Assist NPC in the game
With this in mind, could the lack of these costumes point to a particular type of character coming in the pass?
Is this actually true?