Nintendo quietly announced Mario Party 10 during their post-Digital Event show.

While they didn't announce any details, Nintendo did confirm that Bowser is the 'star' of the game that is due to launch in 2015.

The GamePad player will play as Bowser and can spite other players.

Players will also be able to use amiibo figures, although details are scarce right now.  Nintendo did release an official statement though that gives some more information:

A Mario Party becomes a Bowser Party as the player with the GamePad becomes everyone’s fire-breathing nemesis. During “Bowser Party” mode, one player gets to be the fire-breathing Koopa King and wreak havoc during the mini-games while other players try to dodge his attacks. Players can also enjoy classic Mario Party style game play as well.

We'll keep you updated with more news as it happens.