Things to say about the trailer and FF7 AC.
Is that really Sephiroth? I mean, he looks like him, except for the short hair, or could he be some sort of reincarnation or something? I also read that it's a sephiroth clone.
Sephiroth (assuming it's him) now has a 2 blade sword.
What is the Star Scar Syndrome? Obviously, this has to do with the meteor summon.
Possible character in white robe, and on wheel chair:
Rufus - In this pic
http://www.gamingnexus.com/Screenshot.asp?type=article&ID=282, you can see the Shinra logo on the corner. In the trailer you can see it more clearly. Rufus liked to wear white, and he may have gotten paralyzed and burned after the diamond weapon's attack (thus wearing a robe covering his body).
The real Sephiroth - Can't think of any real reasons why, but it may be a possibility.
Jenova - I doubt it, but there is always a chance.
Hojo - He may have gotten hurt only. Maybe, the guy in black is sephiroth after all and being his son, he may be helping him out. Maybe hojo, made a clone of sephiroth, or tried to do an army of sephiroth's, or maybe it's not sephiroth or a sephiroth clone, but someone who also recieved Jenova's genes at birth, thus being like sephiroth. And maybe this guy does treat Hojo as a father, or maybe it is his father. Too many damn questions.
I am more inclined to believe that this story involves Hojo a lot. Think about it. Midgard is where his lab is (they're back in midgard), and as it seems back in the Shinra building or Mansion (both have Hojo's labs), this may explain seeing the Shinra logo in that room. Maybe Hojo has something to do with the Star Scar Syndrome.
The guy in black is using magic, who knows which? Maybe an enemy skill?
Can someone translate what they say in the trailer?