To be honest, the Mini-Max that was supposed to show next year was pretty revolutionary for diesel engines.
Heads are turned around, so the exhaust goes to teh center where the turbo is mounted, intake system is intergratedi nto the valvecover or something.
Specs were something like 350hp and 500-600ftlbs, and the size/weight of a Gen IV so it could mate to a standard 6spd auto trans instead of the expensive Allison.
Edit: Pics