Yeah, Vaughan rocks. He's getting a little characterization for all, even in minor details (Ororo leading a squad of already formidable fighters in the Danger room).
Here's what I'd like from every character:
Cyclops: Not too much, really. The current brother thing is enough to flesh him out as much as anyone else save a few.
Jean: I want to know how more about those voices in her head, though I'm sure they're going to touch on that soon enough.
Storm: She's fine. She's had enough in the last few arcs. Have her stay punk for a while, and I like the new costume a lot. Have her step up to a leadership role if Cyclops can't lead bc of Havok.
Colossus: Come out of the closet, see which characters are actually surprised. Have Wolverine say, "I-I showered with you! You stared at me bum!" Have him get a boyfriend so he isn't so sad. Jean-Paul mayhaps. Have him dabble in art.
Iceman: Stay with Shadowcat, but keep on fighting all the time. Not about big stuff like cheating, but small stuff, like his choice in costume. It'd be cute and funny. Also, dabble in power-control more. I never understand why people don't play with his powers and/or his psychological take of his powers.
Wolverine: Start talking about beer more. Astonishing Wolverine is funny.
Beast: Stay dead.
Kitty: Stay with Iceman, for reasons stated above. I like her supplementary role. Maybe have her appear in Spider-man, and try to help him, but fail misearably bc she is star-struck.
Nightcrawler: Be more badass, you were extremely well-trained by Weapon X. Show a little bit of a badass/scarred/vicious side. Be like Sean Connery in Bond, you already had a chase scene in an Audi.
Angel: Don't get Archangeled. Stay in a supporting role, learn how to fight in the meantime. I like how he is one of the freakish mutants that can't go outside, despite his good-looks. Have him get edgy with Dazzler. Maybe give him a Speedy drug-addiction (kidding.)
Dazzler: Stay comic relief.
Prof. X: Enough freaking hinting at what he's done. I want to know some of his secrets.