For GM's light duty Silverado/Sierra Extended Cab redesign, the GMT-900 (the new model vehicle) will be arriving for the model year 2008. The light duty Club Cab will probably be included since they already produce them here as well.
If before then they would give them new interiors and slite-AFFORDABLE restyling tweaks it would be a start. They should drop the 4.8L V8 and make the 5.3 the base engine and the 345HP version of the 6.0 V8 as the opt. V8. They should supercharge that 6.0L for the SS wile offering it in regular cab allso. Let the new upcomeing 385HP 6.0L V8 be used in the Denali/Slade premium trucks and in the Trailblazer SS. They ((REALLY)) need to do this to fight the compatition till the ALL NEW trucks arrive later.