This one gets the post-Voice time slot, probably the best you can ask. I think it'll perform similar to Blindspot, staring strong and crashing fast, but still good enough to return. RENEW
With absolutely no buzz, unlike other post-Voice Monday shows, I think NBC will prevent themselves from seeing a second season ratings disaster and cancel the show.
Timeless is getting lucky, airing after The Voice. That should definitely help it ratings-wise. However, the trailer has not gotten good reception, and the show has little buzz. I think it won't do great, but not bad, slightly above Shades of Blue, which was renewed. It should be renewed, but probably given a short season next season.
Timeless may likely start out as your typical NBC post-Voice show on Mondays (Revolution, The Blacklist, Blindspot) which consists of a pretty respectable premiere episode and a gradual decline in the following few episodes. However, I am beginning to think we may not see the usual with this show. With slightly-mixed responses to the trailer and almost no buzz at all (the other three post-Voice shows previously mentioned actually had a lot of buzz before their premieres), it is likely Timeless is going to disappoint. I'm thinking we are going to see a premiere in the high 1.0s or low 2.0s and then a slightly-rapid decrease to the low 1.0s over the course of its 13-episode run. After Timeless wraps for the season, it may be a bubble show but I think it will ultimately end up canceled.
This show has received an incredible amount of buzz, so I think it will make it; I predict renewal.
This show seems too niche, and will likely struggle up against CBS's comedy block, so I think it will get canceled.