End of April date has been set to pitch 2nd season ideas to NBC. Then they decide on a Season 2. #Constantine #SaveConstantine #Hellblazers
— Daniel Cerone (@DanielVCerone) March 29, 2015
Those are the words of showrunner Daniel Cerone, which means the show isn't cancelled yet. It was a bad sign when NBC didn't order more episodes past their initial 13 - but it was a good sign when they decided to air all the ones they had, rather than holding them back. Apparently some of the executives at NBC like Constantine, even though the ratings weren't great. There's talk that it might be moved to SyFy (where its demon-fighting shenanigans would fit in better), so if you want to see the show continue, take to social media and make your voice heard! #SaveConstantine!