Lu Bu is one of my most wanted so I really hope you’re right about the fact he is based on a real person not being a barrier to making it Smash. Zhao Yun is a little bland to me. It would be like getting Liu Kang instead of Scorpion or Sub-Zero but I’d gladly accept him as well for the amazing music he would bring.
We do have fictionalized versions of real people already in Smash:
* Dr. Kawasaki (That polygon DS head and star of Brain Age) is the real neuroscientist Dr. Kawasaki.
* Nintendo's GBA game Napoleon has a Spirit in the game. Safe to say, the real Napoleon did not fight yetis. (Sidenote: The Napoleon game was devved by Intelligent System. I wouldn't mind a FE with a different setting, whether drawing inspiration from other parts of the world or drawing from different eras than the standard medieval sword and sorcery).
* Dracula's a weird case where the character of Dracula might've not been based on a real person directly, but Bram Stoker took a lot of influence from English / Welsh lore about vampires and mixed in a couple Romanian elements like Dracula's name (while Stoker did borrow Vlad Tepes' name, there's not many similarities between the 15th century ruler and the vampire - then again, I wouldn't be surprised if Vlad's reputation for cruelty did inform Stoker's decision to use his name) and Transylvania as a setting.
That reminds me... I still hate Wario’s down special.
I wanted something from Wario Land games, not toilet humor.
That move would be fitting for Boogerman... why did Sakurai do that to Wario?
I can answer from a gameplay perspective:
I think the intent was because most of Wario's moves are not typical "(Super)Heavy" moves. Most SuperHeavy moves are designed to hurt when they land -
F-Air,
F-Tilt,
U-Air, you get the picture where the intent is. Not
though. A lot of his moves don't have the sheer knockback other SuperHeavies have. Wario's F-Tilt doesn't knock people as far back as Bowser's although the sweep low-profiles and can 2 frame. His F-Air is not the huge swing DK's is, although it discombobulates and sets up follow ups well. Wario's U-Air doesn't have the sheer knockback K. Rool's has, although that makes it a good combo / juggle tool.
The only "Typical" (Super)Heavy moves are his Smash attacks, but they're not the fastest and carry a lot of risk to them. His new Dash attack also kinda counts, although it kills a bit later than the Smashes.
That's where Waft comes into the picture. Sure, it might be immature as all hell, but the gameplay intent is to introduce a
ticking time bomb. If you find yourself behind in a match vs. Wario early, suddenly the match becomes an uneasy mind-game situation, especially when a cunning Wario player can snowball that advantage by landing a Waft. Faster than even Bowser can kill a second stock typically.
The intent was very likely to create an atypical heavy whose solution is not "Hit 'em really, really hard" the standard way.
FTR, I wouldn't mind seeing Waft gone - it overcentralizes Wario's gameplan IMHO and kills dummy early (especially once one learns the setups).
But if you remove Waft, you'll have to compensate with something else that fits him or his gameplan as an atypical Heavy.
One thing the past patch did well was to nerf Waft's sheer speed, so there weren't as many confirms into it. Believe me, there were a lot of confirms into Waft before this patch (Up-Tilt -> Waft just to name one) and Wario already has a really solid combo and pressure game as well as stupidly good aerial mobility. Now Wario players at least have to be more creative with the setups.
I could see Scorpion and friends(?) happening, but they'd have to be a heavy Western-appeal pick. Very big in the West, underground in Japan. We know that Nintendo wanted MK11 on their system, but it wasn't officially localized and players over there would either need to import the game or play it on Steam. It could happen, but there's some roadblocks in the way.
Which is a major shame, especially since I could see a MK manga / anime working out perfectly well, and go from there essentially.