Can we get a node based texturing option (window) built into Substance Painter that you can use in place of the Layer stack (photoshop style layers). Nodes can offer a little more flexibility and visual coding to the texturing workflow. I think it would also help the users that prefer this method of working when jumping to and from other programs that work in a similar way (Maya, Katana, Houdini, Nuke etc).
This way of texturing has been implemented in to software like Mari, and it doesnt serve as a replacement for layers but as an alternative workflow.