Well basically, HPK exists no longer as far as I'm concerned...
To me Kanna's a member of C-ute. To me there's Berryz, C-ute, and Eggs, no HPK... And I guess even if there were, I'd count Kanna along with them, just like Yui is a member of Viyuden and not some weird category of her own. Kanna's debuted officially, she's not an outsider anymore.
I feel like I said this all in such a complicated way...