http://www.carscoops.com/2013/07/jeep-rumored-to-sweeten-up-new-cherokee.html

speculates that a force-fed version of Chrysler's Pentastar V6 putting around 375hp with a single turbo and 410hp with twin-turbos, or a 2.4-liter four-cylinder with more than 300hp may be in the cards.
Currently, the Cherokee will launch onto the U.S. market with two engine options, a 2.4-liter Tigershark MultiAir2 unit rated for 184hp and a 3.2-liter Pentastar V6 churning out 271hp.