In order to get the Android version of Minecraft on a Nook HD, you will need to root it. That will allow you to install Google Play Store, which will be able to download and install Minecraft.
When researching this I found over and over again that there is no version of Minecraft currently available for Nook. Maybe in the near future on will become available.
You don't it's a pc game, not a tablet game.
No because the book does not allow outside applications fron being installed. The only way for you to get it would be if you jailbreak your nook and then get it from the android market or google play.
Possibly, but plans for that have never been officially announced.
There is no Nook 2 or Nook Lite coming up. There is a Nook Color, which I think has decreased the price of the Nook. But you can check in the Barnes and Nobles website.
Nook and Go
nope the nook is much smaller than the nook color! dah!
No
no
Yes, the nook WiFi and the nook Color
It depends on what type of nook your using. if it is a nook simple touch then no if it is the nook color or tablet you can but only with the Skype app