Hey sorry prob just a really silly question, is there any way to keep the wireframe edge size constant if I have a camera move moving from right up close to the object to really far away...
no, as a shader , it works in shader space, so as the angle relative to the camera gets sharper, the shader space becomes smaller, and so does the edge. What your asking for would require a post effect.
I'd love to see this for Wireshader Pro!
One of the great things about C4D's Cel Shader is that you can move the camera anywhere and the line is always 1px thick.