As supporting? Anyone who doesn't constitute kicking a dead horse, ignoring major continuity or lumping him further into irrelevancy like focusing the first arc on Amanda and Margali did. I think Claremont is really going to have to work to recover the lost momentum from that arc. From the people I've talked to, most picked up the book wanting to see real Nightcrawler development, his reaction to things like Schism and AvX, some rekindled or reworked friendships and some clear purpose for him going forward. Instead, the first arc had him ignoring the past 17 years of development as well as his friends and everything that's happened and hunting down Amanda. Hello, he broke up with her almost 20 years ago and that for very good reason(s). Trying to establish her as his "one true love" is like saying Madelyne Pryor is Cyclops' one true love. Gimme a break!
Anyway, I hope the first arc doesn't doom the series. I know issue #5 was a vast improvement, so I hope CC continues along that line and builds it.
I like Rachel being used as supporting in the last issue. It played well into their Excalibur history. I would like to see some interaction with Kitty and Rogue, but I think they're both off limits. It would be good to see the Wolverine friendship touched on, even if it's more of Kurt giving him the cold shoulder like he did in #3. Explanation in story would be good, though. I wouldn't mind seeing Bobby or PIotr showing up on occasion either. Really, I'd like his solo to be a book where any of his friends might show up in a given issue.
As far as story, premise and development. GIVE HIM A SPINE. Stop having him as the guy who just naively takes whatever people throw at him, trusting them and forgiving them no matter how many times they've betrayed him. Give him his own opinions and show him backing them up. Going toe to toe with Storm over a difference of opinion was good. Blindly trusting Amanda after her history with him was bad. You know, write him to make sense.
If he's still hitting the world with jokes after all that's happened, than it starts looking more like immaturity and denial rather than a glass half full frame of mind. I like how early Excal managed to balance fun swashbuckling with responsibility and depth of character. I'd like to see that again.
I do like the mentor/ambassador role that CC seems to be trying to set up as of the last issue. I hope he develops that one more going forward.
Also, no tokenism. He's more than the flirt or the guy with jokes and charm. Give him depth.