It'd be an interesting idea, VR Blockland.
Albeit, I don't see it working all too well.
Blockland has a very special 'Don't make me VR' feel to it, as evidenced by the building system and all the keybinds.
You'd have to make a completely separate version of Blockland just for VR, and it'd likely be for the highly popular and very well made HTC Vive.
Just because VR can be added to Minecraft (NODE showed that off pretty well, from basics to killing the Ender Dragon, yada yada) doesn't mean it is good to do to all games.
Certain games do benefit from VR (HL2 VR, lean those corners Gordon, LEAAAAAN!)
But perhaps sometime in the future, when VR allows full-body movement (either SAO style or modern realistic treadmil + socks) we'll see a VR Blockland.