Most likely will not release at all.

This is a long post and you put a lot of effort into it and I appreciate it! I probably should have worded my original post differently as it stated Atlus "has" to give something back to Nintendo. What I meant was: Nintendo's management is involved in the DLC decisions (unlike before, as stated by Sakurai). That implies Nintendo will try to strike deals that go beyond simply putting characters into Smash. So it's likely Nintendo approached Atlus and proposed the deal I mentioned in my last post, as it is mutually beneficial. What I described has been Nintendo's strategy for this generation: Third parties are hesitant to put games on their platform, so Nintendo approaches them and sweetens the deal. This has been their modus operandi for a while now and it has worked with Indie titles and a bunch of bigger third parties.

As for why Atlus didn't put P5 on Switch earlier: Maybe Atlus said "we're not sure whether to port our former PS exclusive series to your platform." And Nintendo replied: "Well, what about we put Joker in Smash to make him more popular among our audience and you port Persona 5 over?" It's quite typical for Nintendo's behaviour during this generation so far. I suspect there is a larger strategy behind this and we'll see this reflected in future Smash DLC announcements. 

I don't think we actually disagree much: When I said Atlus "has" to give something back I meant there has to be some kind of bigger deal behind this with Nintendo changing their decision making for Smash DLC, or it wouldn't make sense to put these guys in charge. From personal experience, the exact same business deal can be seen in a completely different light depending on the approach of the people who handle it. You assume I think Nintendo did it the bad way ("you have to put that game on our platform") but I assumed they did it the clever way ("look, we can both benefit from this") - the deal is the exact same in the end, just the approach is different. Of course, this is all speculation: Maybe there will be no P5 on Switch at all! I just think it's more likely than not.

Dead or Live  Extreem Beach Voley ball are niche games. Don't compared to Dead or A lIve main series. Even Team Ninja said they will add breast physic for Dead or A lve 6 

Add is one thing, doesn't mean PS4 ver of DOA6 won't be censored. And by that logic, SMT series is niche too, the best selling game is SMTIV with just over 600.000 units sold. So if Sony want to censor SMTV, nothing can stop them

Because what  you said about Dead or A live beach Volleyball 3 censoring problem is they remove the breast physic on the games, and that are not applied to Dead or A live 6.  So Dead or A live 6 is mainstream and Dead or A live beach Volley ball is niche , and that is FACT.  About SMT i agree with u it " was " a niche games "until " it becomes popular like Persona 5. But it all depend on Atlus to choose between money or ideology. Before we speak will SMT V will be censored or not we need both games to come out on both platform , hell we even need the games to come out first on Switch .  All talking about censoring will just be a gibberish and nonsense talk  without prove. 

Persona is it's own series different than SMT series. A lot people know Persona but not SMT. If P5 come to Switch then no reason SMTV won't come to PS4, no reason it won't be censored too. "DOA6 won't be censored" is not a fact unless you have played it already

Yes it's not a fact unless the developer it self made the statement, and Yes the developer has just make the statement that they are including the breast physicist for Dead or A live 6 in fact they are developing a new one.  

Including it in which ver is the main question here

Nobody knows until it  release on both consoles.