I think it'll be pretty wild if Sylphiel and maybe even Zangulus joins the adventuring-band circuit or cameos sometime. I mean, Sylphiel really can't have it worse with her home town, I agree. I think adventuring could suit her now though.
I always imagined Sylphiel and Zangulus joining forces for like a decade.
That said, I would probably be happy with cameos anyway.
Oh, and even more elaboration on the Dragon Magazine article:
http://homepage3.nifty.com/QPHOUSE/dragonmagazine.html
A must read!