That's just Stehrenberger's re-worked Huckfelft's impression:



Stehrenberger's impressions are usually published in automotive magazines - just like Huckfeldt's.

We are still quite a few months away of knowing the final design.

The final design of F10 is not chosen yet. But the instructions from marketing department are known: slightly bigger, more room, more coupeish, more aggressive, more commanding. So expect longer wheelbase, higher shoulder line, shallower greenhouse, shorter rear end, aggressive front & back. Styling will be an evoulution of E60's styling: evolved & even more pronounced flame surfacing, refined "Bangle-butt", refined headlights etc.

I expect all new generations of BMW vehicles to come with new interpretation of twin kidney grille: even more 3D, even more pronounced.