Looks like drittal was right. Ram appears to be adding a hood scoop to increase power output for 2018. The grill shape looks like it may resemble that of the 1500. Link
So getting back on topic, RAM may be showing off a new hood. In the new RAM TRX thingy that debut'd in Texas, it indeed has 1 tiny hood scoop in the front, but 3 heat extractors on the top of the hood. Seems like a Ford Raptor competitor, but I think this video spills the beans as to what they're hiding.