That said, certainly the inhabitants of the DCU will notice this change in appearance too. Lana saw the difference right away there in the tomb, once Older Supes had stepped out of the shadows and into the light. Will Clark Kent suddenly age 10 years? I'm intrigued.
I just don't see Clark and Lois "White" stepping into the shoes of their New 52 counterparts. Not just because of their age, but because Lois Lane is still working at the Daily Planet. I'm curious if they'll make use of this to do something different with the whole secret identity angle.