Coming this fall.
From WCF:
A new front bumper, revised taillights and a tiny spoiler lip at the rear edge of the boot lid – that’s what distances the facelifted BMW 6-series from today’s model. We gather that the interior will be refined, too!

Engines, on the other hand, will not change, and so customers will still have the choice between the 258-bhp 630i, the 367-bhp 4.8-litre V8 called 650i and the M6. We expect the facelifted model to debut at the Frankfurt Show later this year.