I honestly don't like the exhaust in that picture. The tips/mufflers are too big, and there is one on each side of that concept drawing. They sit too high and stick out too far to mount throw-over bags for any sort of trip. That is why I am awaiting the unveiling of the production model in October. I won't decide for sure until I see the actual production bike for myself.
I also hope that they don't jack the price up by a grand over the standard Z900 either. There is nothing about this bike that warrants such a huge price increase in my eyes, but manufacturers seem to put a premium on retro bikes. The XSR900 is like this, $600 more than an FZ09 for...a round headlight, different gauge, a rear fender and round LED tail light.
This is likely to be closer to what the actual production version will look like.
http://greatbiker.com/wp-content/upl...1-1024x574.jpg