Simply put....
Leon: He's way too similar to Bayman to bother including. As much as I liked him, Mila has most of his unique stuff covered, minus the 4-part throw.
Ein: This one, I understand. From what I remember hearing, Ein was basically a virtual persona for Itagaki. With him gone, I guess they didn't see the need to include him since they already have another Karate character.
Tengu: He's just not popular enough. It pains me to say it, but he's just not wanted by many.
Genra: Genra is Nicole is Mila is Genra.
Raidou: This one confuses me, though. Yeah, all his moves may have been from other characters but that's what made him unique. Plus, he had really difficult and strong grabs and OH's. This is the one I was hoping to see come back in some way, shape or form.
Kasumi Alpha: She was just there for story purposes in Dimensions, and they figured "Hey! Let's give her Kasumi's DOA2 moveset!". Since Kasumi already has her moveset back from pre-DOA4, there's no reason for this character.
Shiden: He's nothing but a stripped down Hayate. He was pretty much a novelty inclusion. It would've been cool to see him come back with his own unique moveset, though. A shame, really.
I disagree on the
Leon part wholeheartedly. Leon and Bayman play nothing alike. They were only clones in DOA2 and have become very much different as the series progressed.
I didn't know that about
Ein, but I find it hard to believe since I'd never known it before. Either way, even if it were true, it doesn't invalidate Ein as a character, and would only display Team Ninja to be childish for excluding Ein if that were the reason.
Tengu is popular enough.
Genra had a wonky ass moveset for Dead or Alive: Dimensions. I'm not saying I think DOA
Genra would be a good decision to have him return for DOA5, i'm just saying he's a character that was playable, and he should continue to be playable even if it means changing his moveset around a little. Like getting rid of his projectiles for one, or removing his silly ground hurricane attack (which honestly didn't even make sense as an attack in the first place, considering DOA3 genra could never do that, but has a similar "shockwave" effect after being knocked down).
I'd have to say my favorite part of Genra was the fact they recycled some of Nicole's moveset for him. She was a great character.
Raidou is a good choice to make a reappearance. He really really is.
As for
Kasumi Alpha, I wouldn't waste a character slot bringing her back to DOA5. I don't really know why they put her in DOA
. She was basically just a gimped clone of Kasumi.
I wouldn't reproach Team Ninja if they didn't waste a character slot on
Shiden and just added him as some kind of alternate multi-button selection for Hayate. Could simply just be a model swap.
That still leaves one character slot.
Donovan? Ryo? maybe it'll be empty.
It's certainly better to think DOA5 would at least have as much content as a handheld rinky dink 3DS game.