I think the show is honestly just getting better and better I don't know why they wouldn't renew for another season to be honest with you. On a side note I think it will be interesting to see how Finns character develops now that he has murdered mass amounts of people.
The 100's ratings are steadily increasing. It also has a well known cast, with a decent budget. I'm pretty sure they will renew.
I wouldn't say character development, I'd be more inclined towards a certain plot progression. I'm interested in seeing other parts of the country and how others are affected. We might never get to see that though, it may be Walking Dead-esque where they focus on only a few parts/groups of people (grounders/mountain men/Ark).
