As much as I would like to see this show do well, I don't think it is going to survive, mainly because it has Arrow as a lead-in and Peyton's last show didn't survive in the time slot Frequency now holds.
Another factor for its demise is its competition which consists of ABC comedies Modern Family and black-ish, Law & Order: SVU, Criminal Minds, and Empire. The only bright side is its procedural aspect, which could give it a 22 episode order.
The trailer received positive reviews, so I doubt this will be one of the rare CW cancelations; I predict renewal.
First, don't forget everything mentioned about The CW in the previous show writeup about them renewing everything, and having a lot of shows ending. But same goes for Frequency that did for No Tomorrow. I think it will get pretty good ratings and be renewed. Frequency actually has more buzz than No Tomorrow. So, I see it coming back.
This one gets the post-Flash slot, but iZombie and Containment did low numbers and had poor retention of The Flash, and No Tomorrow is a comedy-drama with romance making it not compatible with The Flash, but it's The CW which renewed almost all their shows last season. It'll have to do really bad not to get another go. RENEW
This is a tricky one, but I think it may come down to critical response, which I think will be mixed, resulting in a cancelation.
OK, I actually just went and read what this show was about for the first time. So there is good and bad news there. The good news is I think the show has a very good premise, that should do just fine for The CW. The bad news is there is little buzz on the show. But, if you have a show on The CW it has to get extremely small ratings to get cancelled, or just be the poor show that airs after The CW has handed out renewals. Also, The CW will have a good bit of shows ending this season, after reaching the amount of episodes The CW likes. So, they will need to renew some shows. But all that aside, I think it will earn its renewal on its own merit. It should do ok with ratings and be renewed.