Jeep kept everything pretty much the same suspension wise when they shifted over to the new engine and automatic transmission. They did change a few things on us.
A new loop was added to the exhaust system to keep the exhaust lengths the same from the engine. This unfortunately has caused a problem with lifts and where the crossover pipe sits. Any lift over 2.5", and even those can have contact, will have contact between the driveshaft boot and the crossover pipe. A few companies have already come out with either new crossover pipes, exhaust spacers or new front driveshafts.
Jeep finally put a skidplate around that plastic box evaporator canister that they mounted under the Jeep. Not very substantial, but better than nothing like before. Mounting appears to be similar to the previous years, so most of the aftermarket skids should work, but you may need the old style mount plate for the evap skid, this one appears to be mounted to the skid from the front and back.
Jeep also did away with the front skid plate and just installed a bar across. someone stated that it did the same job as the skid. I'm thinking flat plate for sliding, or round bar for catching stuff. Of course it leaves the oil pan and automatic transmission pan exposed again.
The oil pan on the new engine is smaller.
Of course once again it doesn't appear that the smartest group of people design stuff, especially since the oil pan for the transmission appears, sounds and feels like it's plastic. Ummm???
