Yes indeed, Scintillator is amazing! However, it seems to me that its scope will always be strongly oriented towards animation. Will it someday cover the range of possibilities offered by Processing and openFrameworks (video, sensors libraries, hardware, ios, etc)? What I am struggle to find is something that would bring together the best of both worlds.
Unmaintained, but might still be interesting: GitHub - scgraph/SCGraph: A graphics server for SuperCollider