@Ryan
Here it is:
Actually FCA is calling P0 as P1F.
Both P0 and P2 can feed electric supercharger. But let's say that P2 is a more desirable and more efficient solution.
For RWD cars FCA will use ZF's solution for P2 mild hybrid.
But P2 should debut on FWD cars on Small Wide cars like Jeep Renegade.
It will be interesting to see who will be a supplier and how efficient and powerful will it be.
Speaking about electric supercharger first application was on a diesel engine. AFAIK that's not a globally available engine. It's used on Audi 4 liter V8 diesel.
Today electric supercharger can be found on 3 liter gasoline engines from Daimler and JLR.
AFAIK Daimler is using P2 MHEV and electric supercharger supplied by BorgWarner while JLR is using P0 MHEV and supercharger from Valeo. Both superchargers have very similar specifications.