Sad to hear its definitely over. I really enjoyed the 3rd season, it captured the energy of the book I had in mind while reading it; the weaves were very similar to what I imagined, they even made them distinct to each person in S3. That being said, I had to look at it as another spinning of the wheel to get past some alterations. Much like in Hunger Games they changed or cut characters completely.
At least there is some new fun fantasy coming our way. π
The comics have been really nice to see, I agree that an animated show is a good idea. Maybe in 5-10 years it will be picked up in some form, studios cycle through stories fast these days.