Right now, I'm fairly convinced that Trump will attack North Korea's nuclear facilities.
Trump saw the approval ratings bump following the attack on Syria and I think he's gonna gun for NK next.
It'll get more praise from the ne-cons and some Dems.

What the consequences of an attack on NK will be are anyone's guess though. No way NK has the capabilities of launching a nuclear strike on the US. However, South Korea could be an easy target.