DC/Vertigo is cancelling Hellblazer with #300. There goes its longest running title. I didn't think it was long for this world since Constantine is in the DCnU now.
Sure enough, it will be replaced by a "Constantine" series set in the mainstream universe.
Hellblazer fans are already bemoaning the PG-Era of Constantine before it begins, and wistfully reflecting on the good ol' days.