Car and Driver is under the impression that Jeep engineers are crazy enough to create a second-generation of their hi-po SRT8 Grand Cherokee. The basis? No one will confirm or deny anything (good enough for me!).
According to their contacts, SRTs come out in the opening years of a newly-released model. That means a preview this year would make for a prime 2012 SRT8 Grand Cherokee.
With Chrysler woes and reorganization, we shouldn't expect anything super-new with the power plant. Look for is a stroked version of the current 6.1 liter engine (at 6.4 liters), still naturally aspirated, and putting out over 500 horsepower / lb-ft.
