With Diddy Kong's tail move changed to a kick, Dixie Kong has a good chance of getting in as an echo.
No.
It'd be a great way to have an DK-themed announcement trailer happen for fans of both Dixie Kong and King K. Rool, finally getting representation done with justice.
Oh heell
no.
Dixie Kong as an echo would make zero sense. As much as I love Dixie I'd rather not have her in at all than as an echo. I also seriously doubt Sakurai would ever do this.
You have a character with super clearly obvious traits like Dixies pony tail and her whirl. She could be a semi clone similar to Wolf,
maybe. Except her upB would probably be different. Would Sakurai really give her such a treatment to put her in? I don't think so. It wouldn't make Dixie fans happy to have a 2nd Diddy Kong that looks like Dixie without any uniqueness. They'd also have the same speeds etc, which wouldn't make sense again, although I guess Sakurai could just look at Tropical Freeze, idk if they have different speeds there.
Sakurai wanted to include Dixie as a tag team for Diddy. Clearly he wanted to account for DKC2 and maybe the DKC franchise in general. They probably switched with downB like most transformig chars and didn't have a banana.
They were
obviously different characters or else there would be no point in switching. Of course we don't know if it really worked like that or if maybe both were the same char like ICs and just working together for some moves. But did Sakurai really plan so many double-chars like ICs? Diddy/Dixie and possibly Plusle/Minun (I mean I could see PraMai as being another pair, but not two more pairs.. even though it's not 100% sure if PraMai really meant Plusle and Minun)? I doubt it. Why would he take away their uniqueness? Though I think it's possible for him to have planned some combination move like them being able to carry and throw each other, who knows. Since Sakurai likes staying true to the games they were probably different characters and switched around like in the DKC games.
I was assuming Sakurai would include Dixie in Smash4, since he probably already had at least something of Dixie already done. It's weird that he didn't include her, and maybe this helps her joining alongside K. Rool in Ultimate for 4 characters for the DK franchise.
Another thing to note, at least for now (though I could see it not holding true for all of them): Echos, atm, have pretty much the same build as their original character.
Pit/Dark Pit.. very obvious.
Marth/Lucina.. she's a relative of Marth, using the same moves. It makes a lot of sense for them being about the same.
Peach/Daisy.. Daisy basically exists as a NPC except for spinoffs/sports games and stuff. She's just another "girl" character alongside Peach. She always pretty much looks like Peach except for her changed hair (it only changed after a while)/colors and stuff. So that makes a lot of sense too. Make Daisy fans happy (finally, since she basically was some kind of costume for Peach already) while including another echo fighter.
That's why I could easily see:
Shadow: Just look at his debut game. He is basically Sonic without Sonics bounce move. So while it would be a little sad for him to just be an echo it would make a lot of sense as well just to add another char (Sonic chars and Shadow are pretty popular in general).
Octoling: I thought this would be a color/costume for Inklings, but it's possible they'll add them as an echo I guess. Since in Splatoon the characters are the same anyway. Although I'm not sure if Sakurai would really want to include them when he already has Inklings.
And maybe Dark Samus. Although she uses different moves, the armor/look is practically the same. She also isn't a playable character in Metroid games (afaik) so it's not like she'd lose that much. Still, a little sad if she loses a few of her cool moves from her Assist Trophy self, but I think it's okay and they could change the specials a little to match her AT attacks at least somewhat.. maybe. Idk how much they're willing to change for echos.
Dixie was a playable character in multiple games with different moves and attributes to the other Kongs. She also looks different and has her obvious pony tail and her signature move is basically the whirl. That's why to me she's a lot different than the echos above.