Netflix uploaded a pleasant surprise trailer recently. It's an anime series, but it's also stop-motion.
https://www.youtube.com/watch?v=atpyjjgBhCA
The description is pretty vague (it's about these characters living together and...not much else), but I love the concept and it looks adorable. It premieres April 19, 2019.
Longer trailer. (https://www.youtube.com/watch?v=YKJf876thxw)