Ok, I actually read all and first: I ignored everything regarding leaks going on now (For me, false until proven true).
However, despite not agreeing with everything, it's worth consideration.
As for teasing in a way to know trends and interest, I STRONGLY AGREE.
I actually noticed some correlation with known teases about this theory. Ridley: more than a year and probably the most complex tease to decipher. It's known by a lot how solid and numbered the fanbase is.
Little mac, quite a lot of request and popularity and he got into 7 months.
Palutena was 3-4 months, but she was quite popular.
Greninja was a month. He was popular in his game, but not really requested in smash and he was basically unexpected.
And I noticed that if you check the tease trigger, it's always coming into a similar process. I made a long theory a while ago, but I'm just going to summarize it.
The tease is made by revealing something that looks completely usual, but there's something hidden. There would be an unclear info or not providing an info that should be crucial for speculation. Basically, it's like you that would interpret the outcome of this info to speculate about it.
Here's the thing: it's made to vary from people who care about the character and those who don't care. Sakurai knows that the one who care will go into a deeper thinking than the one who would not care and would assume a truth that has never been clear and even better, this truth will always contradict the true intent of tease thus, making the people who don't care deny the tease.
As for who care, the outcome is going to be mostly different. There would be reasons to believe that something seems fishy and that it could hint more towards playable for the said character.
After, there's always a waiting period to let the wind rage. Like I said earlier, the time seems to be consistent with the trends.
When revealed, the one who would be the most surprised is the one who didn't care since they denied the tease. This makes the reveal more hype than it would have without teasing.
In other words, he prepare his teases according to fanbase.
Ok, moving on...
East vs West:
That's really possible. I was too wondering why red and blue and I tough it was the logo colors of the consoles, but why Final destination?
That actually may be bad for this theory. Because if it was from console logo, the only way it would be possible for making sense with the east and west was that it was planned for smash before and if I recall, because of uprising, it wouldn't.
So, care to explain this other outcome? Because I'm sceptical.
But for the other evidences, you have a point about the unanounced one. I found that so weird to have no kirby stage (I mean c'mon, that's the freaking series that Sakurai would hype A LOT more). Having to wait for WiiU is a great possibility. Now, characters could be too by that logic, but I have to say that I'm VERY sceptical about something Sakurai said.
He implied that we would ran out of trailer for newcomers since they were reaching the bottom of the stack.
^This, is my main problem with the whole theory. Because honestly, I would expect trailers AFTER the 3ds release if it was true. Telling it at like 3 months before that release and that we will likely have another one before said release, do you think it would still work if they are running out of it?
Not to mention that for characters, waiting 3 months before getting new ones...not really consistent to not do it in trailers for at last one.
Speaking of the release gap, I have to accept the possibility because I personally think that he did the same with the SSE confirmation.
Tough, it would make sense with the consistency of NOT talking about that it's the same roster...not from the start. Saying just it's the same roster without the not from the start is indeed partial truth. Tough, he said that they shifted the release for shifting debugging period...that may hurt this theory.
Because it can't be a lie to work. It has to be for shifting the debug, but if there's another reason, it still has to do with shifting the period and this theory is not since it's marketing purpose. Would like to have your tough on it.
And lastly, I got that by analyzing the tease I was talking about, but all trailers except the pac man one that did both ALWAYS showcased the respective newcomer in a WiiU stage and not a 3ds one. Care to elaborate because according to this, it would be favoritism towards the West right?
So, I'm mostly sceptical because I see other possibility that I seem to find them more likely than this unless you can explain why those possibilities wouldn't be more likely. Tough, the point about teasing is the truth imo, but the trailers when revealed wouldn't make sense with the east west thing.
That's why I'm waiting for your answer.