I have read about 2014 Jeeps, but nothing yet about 2015.
The 2014s are a disappointment in that only the high end transmissions have 4 low and transfer case neutral. I would suspect the same for the 2015 when available.
You can search on the Jeep web site and read about the 2014 transmissions.
FMCA #F431170, GS #822128658, Escapees SKP #112655
2012 Airstream Mercedes Interstate Class B