I don't see how, it's only one element that is different from Brawl's and SSB4's. Everything else seems to line up between the two versions.
Whoops, I'm sorry.
Different games. Doesn't matter how similar. Still different. That's just not proof to use an old game as that, not in this scenario. Only Final Smash already shown in 4 are worth comparing to.
I guess we differ in on whether or not Sakurai was vague or not. The reason why I accused you of trolling was because (to me) Sakurai pretty much laid out everything that would point to a FS. I just found it to be silly as to why someone would not believe this not to be the final smash given how the picture was taken. I mean look at Starfy and Andross, Sakurai didn't mention anything about them being Assist Trophies, but we just know.
I don't see how it isn't vague. Did he say the role? Doesn't matter what the picture looks like. Did he say the role? If he didn't say the role, it's vague. That's how it actually works. Implication just isn't confirmation at all. And never will be. He didn't say it was a Final Smash, just named it, said what it could possibly do, and the picture's exact timing of the effects hints at it being a FS.
Let's say it's his Down B; When he attempts to go into his Final Smash, the Poltergust doesn't disappear right away due to it being a set time, much like the FLUDD. So for all we know, it was just a coincidence and he set it up like that to mislead us. The problem right here is this could actually be what exactly happened. And this is why I'd rather he specified what the Final Smash was himself instead of assuming due to what we "saw" only.
And we don't know those two are Assist Trophies either. It's just a guess. We have an idea of what their role might be, being the same as Brawl, but until we either confirm them manually, or he does so himself, their roles are currently mysterious. As noted a bit before, for the purposes of the SmashWiki, we outright refuse to put them as confirmed as AT's in 4 due to the fact Sakurai didn't say that was their role again. We don't allow speculation and assumptions to rule it. We only allow cold hard facts. You can argue all day if it's worth it or not, but I follow the same philosophy; It ain't confirmed till Word of God says so or we have the final copy and can manually confirm it.
Now if it's a Final Smash, why not point it and say it? I believe he's pointed out every time there's an Assist Trophy with the exception of Starfy for some reason.
I'm not saying it is or isn't Luigi's FS, but just pointing out why someone may not think it is. With Sakurai, it's hard to tell what he's getting at unless he says it and even then it can be vague.
He didn't bother to confirm Andross as an Assist Trophy again either. Weird, even though it's bloody obvious, or at least, his AT attack is the same. My own theory that is if he somehow isn't an AT, he appears on any space-based stage with that attack. For the record, I lean towards him being an AT anyway.