Just like the 7 series, the 5 series bumper is now leaked. Looks promising.
The bumper design is close if not identical to the production one that will be featured on the 2010 BMW 5 Series and despite the previous rumors that the 5er might sport a front-end inspired from the 7er, I can certainly tell you that this is not the case. One interesting observation is that the BMW roundel will sit on the bumper and not on the hood as it does now.
Does it ring a bell? Yes, similar to the new 2009 BMW Z4.