A:AnswerNo, it will definitely not come out on Xbox, or Playstation, it will only come out on the Nintendo Switch. Mario is Nintendo's mascot and they own the character so the games only come out on thier systems.
A:AnswerIn super mario galaxy, a 2nd player can point at the screen to collect star bits and/or shoot those at enemies to stun them. They have no avatar and control nothing on the screen other than a pointer. There really isn't a true multiplayer in any of the titles.
A:AnswerProjections are saying this will sellout on on preorder. This means even if preordered online you may not get it and no one will k now until it's about to ship
A:AnswerIt has been discontinued already in digital form. The physical has been discontinued, but has not been pulled from the shelves. Once the physical copies are sold out, there will be no replenishment.