Absolutely, this has been something I've been planning on figuring out the best way to go about for a while but haven't invested much into it just yet. Layer origins are represented in canvas-space rather than machine-space, so as the canvas size changes they just sit there, relative to the front-left of the canvas. I was considering changing it to machine-space but then if you move the canvas' machine origin they'll need special-case handling to move them around relative to the center or front-left of the canvas.
I'll definitely keep it in mind as we move forward and figure something out ;)
- Charlie