The G8 while dead under the Pontiac logo, still lives in the Middle East as a Chevy Lumina....and it will most likely return to the US as a Caprice/Lumina here...
http://webnewcars.com/chevrolet-lumina-ss.jsp
The 09 G8 GXP was an absolute beast, and I loved them, just couldn't afford it at that time....otherwise I'd probably have one instead of the Camaro...