I really do hope the Superman show doesn't descend into trash.
Arrow had it's up's and down's, but I think ended on a high. Flash started well, went south, Supergirl didn't have the best first season but improved for Season 2 and then started to slide again. Legends had two good seasons then became the biggest joke of a series DC have ever kept running. Black Lightning hasn't been too bad throughout, though just wasn't getting the viewers needed.
I really want Superman to stay good, but I can't help but fear the writers will run out of ideas and it'll take the fall.