I only hope (and I doubt it) that Chrysler learned from their past. I don't know a lot about the previous Grand Cherokee CRD - mostly because they didn't sell well (way too expensive), but as an owner of an '05 Liberty CRD, I would be very hesitant about anything Chrysler ever again. It's a great vehicle (when it works), but I have never owned anything that literally falls apart before your eyes so quickly. If it's not parts cost cutting causing the issues, then it's piss-poor ECM and TCM programming helping the parts fail.
Nevertheless, as much as I want to just set it on fire sometimes, it really is a cool little vehicle and fun to drive, not to mention unique and a bit rare. That's why I still own it even after buying a more reliable car for the wife ('10 Outback).