It's more evolutionary than revolutionary, which is good (I suppose). However, the A8 trickled out at 1/10th the pace the Mercedes-Benz S-Class and BMW 7-series did, so Audi needs to get ontop of the marketing scheme with this one.
The rear looks a lot like that of the new Volkswagen D1. Given that the FWD 3.7 liter V8 A8 was dropped from the market several years ago, it's unlikely we'll see it here. What I am interested to see is the eventual arrival of the W-12 engine.
By the way, the interior is gorgeous (as usual).