For me the real interesting angle is the camera element. If Nintendo (and it'll no doubt be Nintendo, in typical 'in-house-will-exploit-console-specific-function-better-than-other-less-interested-third-parties' fashion) can integrate this into the right game in the right manner, the potential is significant. And the company will no doubt be looking to do this quick - it wants Lite owners to 'upgrade', after all.
Graphical improvements are always welcome, but hardware performance is so at the back of Nintendo's mind these days that I can't expect it'll be anything of any consequence.
As ever, happy to be proved wrong.