I imagine Zach's doing the smart thing, and not thinking about NJ at all right now; he has other business to attend to, winning a National Championship. Thinking about the jump to NJ would be a bothersome distraction; there's time for that later.
The kid has lived a charmed hockey life, winning championships all along the way. From taking the MAC's several times, to USA Midget AAA, to World 18U, to World Juniors. I think he really wants a NCAA Championship before he sets his sights on the pro ranks and the Stanley Cup.
Even if the Sioux win this year, I still think he'll be back in Grand Forks for another year, so relax all you rabid fans. This is the kid who stayed at SSM instead of uprooting and spending 2-3 years at Ann Arbor; the kid who chose the Sioux, in part due to the setting -- a smaller place than the Twin Cities, a place where hockey is king, and a place still pretty close to home. I rather imagine he's enjoying himself just fine, thank you, and will decide to stay put for a while.