regarding final roster predictions: Nobody is right except Sakurai himself.
My final roster predictions have changed a lot since the original trailer and will keep changing with each update.
Disregarding the pro- or anti statements that can be made regarding characters, so far Sakurai hasn't dissapointed with his newcommers yet (in my eyes) and I believe he won't do so in the future.
When saying that "x could be an AT" you need to remember;
Lyn and Samurai Goroh where two of the standard characters to be seen in early roster images people made, they ended up as assist; and although I doubt many more plausible playable characters will share their faith, it can be argued that it will happen to some other popular choices.
I'm as pro-ridley as can be, and he's currently my number 1 unrevealed character choice, but I aknowledge very well that he could just as well turn out to be a boss.
In my eyes any opinion regarding a character is good, as long as it's based on something; and as far as I understood, Sariku Uchiha did that; (though I do believe he made a slip up regarding Dedede's 1st time)
Sometimes it may not sound that pleasant to hear criticism regarding your favorite character's probability to be playable, but if it's based on reasoning, I don't see how that's a bad thing.
(Sorry if this was too off-topic, but it was mostly regarding Sariku's podcast and Kentalicious his reaction to it)
That aside, I really hope the podcast is posted soon, if it takes more than an hour I'll probably have to go to sleep before it's out and it'll take a whole schoolday before I can listen to it :'(