So... 2 things that were kinda hinted at in the movie...
I just got done watching Zootopia 2, and it was pretty great!!! My only issue was the side gags... They made it feel a bit weird. Anyway!!
The first... I have a feeling that we might be getting a series where they hunt down those 200 or so escaped convicts. Might not even be Judy and Nick focused! (I hope it isn't and they just make a cameo in 1 or 2 episodes).
Second (and the more obvious one for those that watched the after credits scene) Zootopia 3 is inevitably gonna happen and is going to feature something about birds.