Even though this seems to be effectively BlazBlue III, it wouldn't stick in so many people's craw if they hadn't been assholes about Extend and forced a new retail release, screwing over everyone who bought into CSII and bought the new characters to support them.
I bought Extend cuz I got it real cheap and never bought the revisions/DLC. That doesn't mean Extend was not handled poorly. After playing it, it could have been done as a DLC package. It would have been under the size limit for XBLA / PSN add-ons, there wasn't 2 gigs of new content.