OMG! Xander! Yay!
I, like many Buffy fans, have seen the cover for the second issue of what is apparently going to be 'season eight' of Buffy. Except, you know, in comics. Without Sarah Michelle Geller. When it comes to television and movies, the actors really are such an important part of the characters for me. So, while I might buy the comic on the strength of the cover, it probably won't become 'canon' for me, no matter what, because my canons don't generally cross media lines. Without Sarah and Nick and Aly and Anthony (etc.), it isn't really Buffy to me (ex. Serenity wouldn't have made it into my canon for Firefly if they'd changed the actors; Buffy the original movie is not in my canon for Buffy).
But I might find it an interesting possibility for how things turned out.