Along with the other Virtual Boy games. But we all know what the main event is (even though the trailer didn't even show any clips from it, for some reason):
It's really cool that they finally acknowledged the VB but I find it kinda lame that you have to buy their accessory in order to play the games. Games like VB Wario Land would be pretty functional with just a controller.
I'm excited for it, but buying the accessory is a big no for me. If there's a way to trick the system into working without it, I'm gonna do it the Wario way! But for real though I really don't get why they wouldn't make it work with the labo vr, it literally looks like the exact same thing, sliding the system in front of some cardboard (and labo vr even references their past with the virtual boy too)