Supernatural was good until the season 5 finale, where it was officially supposed to end. Everything after that just went downhill. By some miracle I was able to slowly grind up to season 11, but then just stopped in the middle and never bothered again. Not surprised the new show might not be much better.
/Edit: Just watched the trailer. Looks terrible. Also really, really odd that they didn't involve the Sam-actor, what's his name.