You mean make the internal Shader and ConstantBuffer classes part of the public API. Correct? This would allow someone to implement their own custom effect system if they wanted.
That has come up before… the main complexity is that it would be limited to only a few platforms where it was available. Also we would have to finally support GLSL shaders as there is no automatic translation from MojoShader for this.
Anyway… I’ve added this to the list above!