WELL ~imago3d (https://www.deviantart.com/imago3d) AND ME JUST FINISHED READING THE FINAL SCRIPT FOR KUNG FU PANDA 3 ... YOU ... probably don't need to guess how I feel about it.
So, right now we have production stills, animatics, renders, and of course the script itself.
Now, we also don't need to go into anything about how I can't disclose everything as according to our NDA, however--I can answer some very general, non-spoiler related questions about Kai, the Panda Village, Li-Shan, Po, and well... some other open points that were brought up.
Now remember people--this IS a DreamWork's movie, and especially a Kung-Fu Panda movie... story telling has never been their for