I know it will probably never happen. Just think about it tho, blender does everything in lines, curve or not. so it bakes the colors and gradients, you set the quality (how many colors it will export to), then it converts the mesh into a series of curves based relative to the UV lines of the visible mesh. I only suggest incscape implimentation because its free, so half the work is done already. Like i said, i know it will likely never hapen, but there is no reason why it cant.
and this works in vise versa also. blender could convert the lines of an SVG into curves. of course doing it this way leaves little to no room to make it in 3d, but this does not mean it can not create a 2d set of curves from the lines of the SVG, or perhaps even EPS.