OK, I'm not at all a big fan of these special editions, but I really like this one.
New engines/drivetrains take a little time and a LOT of money. Fiatsler is working their way out of bankruptcy and has actually done a fairly good (IMO) job of refreshing their lineup in a very short time. They say they have much more across their entire lineup to be revealed between now nad 2014 MY.
Big part of it is production capacity for the Pentastar engine at Chrysler and at suppliers. According to a Chrysler engineer I talked to, the Pentastar engine will be
the Chrysler V6 used across the board, replacing pretty much all V6 engines. Obviously they need to stagger the change over for avoiding part and engine shortages until capacity is fully built up. The JK is selling very well even with the old V6 and therefore is unluckily low on the priority list for the new engine. If Chrysler can boost JK sales with some fancy stickers, slow(er) selling models needing the new engine to improve sales will have priority, regardless how much we scream on this portal. Once Pentastar production capacity is plentiful, the JK will get the Pentastar too because reducing the number of different engines will represent a cost saving for Chrysler. It's all the power of economics.
I fully agree that Fiat/Chrysler has done an excellent job refreshing and improving their line-up. With Sergio Marchionne, Chrysler has finally again a true car-guy on top and not some bean-counter investment banker dude.