I've never heard about mercury before! Great to see more virtual DOM development.
I hope the new framework gets animation right, I'd love to see it as flexible as in D3, in my opinion this is something currently React currently lacks (the transitions are there but they are too simplistic to cover complex web app cases).
Care to try out https://github.com/chenglou/react-tween-state? I've been experimenting with animation in React and would love to see the general paradigm behind this and implement it in React.
I hope the new framework gets animation right, I'd love to see it as flexible as in D3, in my opinion this is something currently React currently lacks (the transitions are there but they are too simplistic to cover complex web app cases).