I personally can't understand why fans would even want this show cancelled, even if you did not like the latest season the fact is that Konami apparently has no interest in it anymore and thus the ONLY love it is getting in today's market is the popular tv show, if the show leaves than once again where stuck with nothing CV related to experience and is that what you truly want which is for the series to sink into obscurity yet again?
Besides I like the show, my only complaint is that they seem intent sticking only to the CV3 era when I feel the lore of CV is so perfect and ripe for spanning between different eras between seasons and eventually making it to the Sorrow saga for the final season but obviously that is not going to happen now since we are nearing 4 seasons and still stuck in the CV3 era.