I'd still romance them all
but yeah, I see the point about lack of book Cullen. Still, it'd be nice to get -some- sorta status update. It's like, I think they're holding off on him last because of his controversial companion-iness, and on the other hand, could be holding off telling us anything because he's not, and they have their preconceived notions of us being pitchfork carrying torch wielding mobs.
If he's not, I think it'd be alot nicer of them to tell us. Seems simpler and less-spoilerish to say who isn't a companion. Unless he is, indeed, a companion.
Also, if any new companions are in the book, I'm betting on them releasing new companion things afterwards, to coincide with the book reveal.