Well, it's a little hard since some of it is specific to things shown in the trailer - well, one scene, really, but the way it's done makes me worry that Jessie's being shafted out of opportunities to have much time or interaction with Cloud all by herself. When we've seen her shown in official stuff, it's nearly always been alongside Biggs and Wedge as well as Cloud. It's almost like the three seem to never do anything apart from each other, and I worry that during the time we have with them, it'll always be as a group. I'd just like to have a sidequest or mission or two where it's just Cloud and Jessie and nobody else.
And I'm still worried about them not including her in the flower choice and giving us some lame excuse just to keep her out of it. Also that we won't get to see her in a different outfit. SE comes up with nine dresses for the Wall Market sequence, but did it ever even occur to them to let Jessie have even one for a scene or two of her own in a different part of the game? Did they never stop to think that she's a girl too and that people might be interested in seeing her like that, in the same way we'll get to see Aerith and Tifa at Wall Market? I don't know anymore. I'm afraid she's being denied certain things like that just because she's an NPC.