Even though I didn't like Man of Steel I got to say I kind of liked the new Superman trailer. Maybe it's because I don't think they will go as far as making him a killer and have people say things like "maybe you should have let them die." Or maybe because it feels very much like a non-CW show. It might actually be good in way that feels relevant like Black Lighting.
I seriously doubt this--or any other CW-DC series will approach the layered relevancy of Black Lightning. That's just not in the creative DNA of the other series at all.
Trailer is better, but still not good enough. I think that there is a near certainty that this show will be unwatchable at this point.
The trailer was ho-hum. This better have real meat on its bones to make up for what the trailer suggests will be the tone of the series. Regarding the series being unwatchable, well that remains to be seen. I will say if SM is reduced to dried-up,1950s camp counselor behavior which would make him an irrelevant bore in the world of today (instead of being interested in justice, but has his limits), or a pushover to any degree the show would get old fast.
All you have to go on at this point is the track record of Berlanti's DC shows to predict quality.