Yeah, I was thinking something like that too Devastlian. MK's ariel attacks at least have stunning capability, so we know he won't be Roy, but as we found out with Marth, a character doesn't need killing ariel moves to be good. That being said, I also can't even see Metaknight as High tier, I'd say he'll wind up being Middle. If you think about it, he probably will have only slightly overpowered smashes, but all the power in this known universes, coupled with that of several others, can't make up for a lack of range. Not to mention, even at low percents like in the trailer, his ariels had too much knockback to combo into with a smash of some sort, so unless his grabs are uber week, MK isn't going anywhere fast. Remember Y. Link from melee?...or perhaps Pichu?...who had decent comboability but few options for closing out the combo with a killing move. If MK's game relies on a lucky single strike, that will hurt him. His Dsmash could have the knockback of Pichu's Fsmash, but if he can't hit you with it than that won't make the least bit of difference. Also, a Dsmash like Fox's or Mario's will destroy him if he lacks vertical recovery. Once you are hit out of the multi-jump midair jump MK has, you will be forced to upB recover, which looks like Peach's float but without the damage. Go look at the trailer, right before Pit drops in, if you don't believe me. MK is gliding across the screen, and he does the same when recovering to that breakable-platform stage, after a small flap skyward. A nerfed upB from Peach won't work as a recovery, so one smasher thinks.
I personally see Mario as being High tier, if not top tier, but not god tier. His attacks, from what we've seen, look like they have very workable knockback, so assuming Mario's grabgame doesn't get nerfed, he'll come back stronger than in Melee. Kirby will probably wind up being the Space Animal Slayer, destroying all fastfallers with cheap juggling Utilts/grabs, but doing very badly against floaty characters. Nintendo most likely gave Kirby better knockback on his moves, all except the spike. Although, if we can still meteor cancel, maybe giving Kirby his godly Smash64 spike wouldn't be so overwhelming? As for Zamus, I see her as being fairly low tier. Her tilts from the trailer didn't stun very well, and while we havn't seen the total effectiveness of her gun/whip, since we all agree that Shiek would be nerfed, and we all seem to agree that Zamus will be a luigified Shiek, isn't it safe to assume that Zamus would take Shiek's natural place in low tier? Her jumps also look to be about the same ratio of Luigi's from Smash64, large first jump and even larger midair jump, and no falling speed. Slow falling speed really kills a character's ariel game if they can't maintain that ariel presence, so unless Zamus has the ground game of ICies, she won't do well.
Everyone else I'll just leave out of this for now, I've got no strong argument propared either direction at this time. No tier list from me, not until we've got a few more characters. The only way we make a tier list is by comparing the character to all other character's metagame and in-game strategies, character-specific advantages and whatnot. With only eleven characters it's neigh impossible to say how they might be countered.
Later<