When it comes to hockey, I think the most important aspect of a hockey school is teaching the basics. Great skating techniques and puck handling techniques are always going to be needed in a hockey game and to excel in the sport. Nowadays, there are a bunch of hockey schools that just use bunch of props on the ice and make the kids stick handle or toe drag around a mini stick, pass it off an elastic and take a one timer that has to go bar down or else he gets in trouble.
The players, who are kids, need to just have fun and you have to make a school where they want to get up in the morning and show up. Meet new people and friends, maybe even meet some SHL all stars or alumni who can pass by and make the kids feel extra special.
As someone who has already coached minor league hockey here, I can guarantee you that kids need to be the best skaters out there before they start working on the fancy toe drags and the Lacrosse goals that they see on TV.