Without going on a sprawling tangent, I'd argue against this because they've repeatedly said that this season was meant to be extra and that this is indeed the last for Smash Ultimate. It makes me think of how they handled Smash 4's DLC: three heavily requested cut characters, two enormous gaming icons, a shill pick, and a literal Smash fanbase pick according to Sakurai himself. 6 of the 7 were big deals. Min Min being our "Corrin" for Season 2 wouldn't exactly shock me. Even then, people often downplay that Min Min was pretty much the most wanted ARMS character by the fans and developers so she was hardly a "eat yer ****in' broccoli" pick and literally the best choice they could have made according to both ARMs and Smash fans.
Yeah, Min-Min was definitely the biggest character wanted by ARMS fans and Smash fans, but let's not kid ourselves and say she was highly requested/crowd pleaser before ARMS got confirmed, because as far as I can tell ARMS didn't really do that well in Smash polls
until after we already knew what was coming. And I can't really see Min-Min being a Corrin-like advertising pick either (though she does have those traits) just because Corrin's game was actually out in the last 6 months in Japan and coming out in the coming months everywhere else. Min-Min came out after ARMS had already been out for 2 years, and had already sort of "peaked". It won't be until we see ARMS 2 (whenever that is) that we'll see the effects Min-Min actually had.
Min Min was the equivalent of Byleth in that most hardcore Three Houses fans/ARMS fans thought that they would be the best representative from their game. But that doesn't make Byleth a "fan pleasing" pick to Smash fans, does it?
And I DON'T get why people think "EXTRA" means some amazing fan-pleasing 10/10 characters. "EXTRA" literally means just that, characters that weren't originally planned out for Smash Ultimate, that have another shot. These are literally all just "bonus" characters, that couldn't make it in, in the first round because of other priorities (FP 1). There isn't any subtext suggesting all of these will fulfill fan requests/dreams.
Case in point, Min-Min:
- Sakurai stated that an ARMS character would have gotten into base game if it wasn't too late, and Smash had "already been finalized". Chances are at that time it would have probably been Spring-Man since that's who they decided to AT. But after 2 years, and a "bonus" Fighters Pass; they decided to include Min Min because she rose up in popularity among ARMS fans/developers.
Min Min/ARMS was literally an "extra" fighter that missed the boat originally. Now obviously who knows what this means for another character that Sakurai admitted "missed the boat" like Rex. I would say he's likely, but I wouldn't say he's a lock or anything like that. Same with other characters that had heavy fan demand but who knows if they were even considered at all originally for Smash Ultimate (characters like Geno, Rayman, Waluigi, Isaac).
Obviously I think we should expect
some fan requests/big characters in the pass. I just feel like taking Sakurai's statement of "this pass will feature 'extra' characters" as meaning that this pass will only be filled with fan requests/big series, to be conspiracy levels of reaching especially when we have evidence directly against it (again, via Min Min because yes she was a popular pick in the
ARMS niche; but lets be honest the
ARMS niche wasn't big until after
ARMS got confirmed).
On a completely seperate note, it's looking likely that Nintendo is gearing up for Zelda/Pokemon anniversaries next year. I know people are expecting Mario to get a character to 'celebrate' the anniversary (namely Geno/Waluigi), what are the chances that we also end up getting a Zelda/Pokemon rep to celebrate their anniversary? The fact that SnS got a spirit event wouldn't really mean much if say, Diamond and Pearl remakes come out next year. Likewise, BOTW 2 seems like Nintendo "big" game for next year too, so they may cross advertise it via a Smash fighter (probably one of the champions, or BOTW 2 Zelda if she gets a combat role). I think it's fair to think that if Nintendo puts in a Smash character to celebrate Mario's anniversary, that they'll end up doing the same for their other big series' anniversaries next year (especially Zelda and Pokemon, since they're a part of the big 3 Nintendo series to many people).