Thanks a lot mate!
Here's a picture of the new grill...
Fairly sure that it won't fit a B8, but I've never personally tried.
Might be wrong, but for example 8P2 Audi A3 grilles didn't fit 8P3 A3 facelift models, and vice versa...
Therefore, I think Audi mix it up every facelift and model change.
Cars of the same platform and age sometimes can, but I think you're talking cross platform facelifts? That picture is a B8 facelift (or B8-2 as they probably call it on enthusiast sites or forums).
Get a reliable second opinion though for sure