I got this.
For the fans of
Western RPGs and Western third person shooters. Moveset-wise, I think Shep would be more fun than Doom Slayer, for example, but these kind of characters aren't my thing for Smash in general. Moreover, if we ever get another Rare rep
she seems likely. Perfect Dark was critically acclaimed and is still considered one of the best in the genre. I'm surprised people didn't rally behind Joanna like they did for Banjo. But realistically, someone like Tracer would probably get in before those two.
No doubt Dante would be cool. Another Capcom rep that's slept on is
Monster Hunter. Let's ignore the fact that Monster Hunter World sold more than any other Capcom title ever. It's also a type of game not explored in Smash's playable roster and the series has a lot of history with Nintendo. Also, if we go the Echo route, Sakura is high up there on the list, being Street Fighter fans' most popular character, consistently ranking 1st in official popularity polls with over 150,000 votes each. Though if we got an original character from the game, I can't think of anyone more iconic in popular culture than the strongest woman herself, Chun-Li. And don't get me started on Jill Valentine.
Speaking of Chun, there's Mai Shiranui if SNK can double dip.
2B. No picture. No need for an explanation. You should already know by now if you already don't. Just 2B. Although SquareEnix has so many awesome women to choose from (partially thanks to Final Fantasy), but I'll just settle with 2B.
If we go the Assassin's Creed route,
Kassandra is from the latest game and turned out to be more popular than her male counterpart. Although I imagine her being an alt while other more popular protagonists like Ezio or Altair are the default.
Soul Calibur's
Sophitia Alexandra has a lot going for her in and out of her home series. She's relevant enough to have two kids and her sister in the games. She was one of the few to defeat Soul Edge (with some help from Taki) in canon. She's heavily featured in merchandising, etc.
Shantae seems likely as an indie rep. She has a game coming out soon.
Don't get me started on first party candidates with no playable IPs yet like Mach Rider, Style Savvy, Ayumi Tachibana, Ribbon Girl, Akira Howard, etc. Or popular picks like Elma, Dixie, and <insert Fire Emblem gal here>. Or less popular yet viable curve balls who were screwed in the Brawl era like Jill Dozer. Or villains like Medusa.
And I haven't even touched viable picks for Japan or even Asia at large.
Smash 4 was on the right track, but then they took a step back.