Although the information is probable, it is unclear as to where the source originally found this information, so I’d consider the details below rumors for the time being.
– D.K’s Snowboard Cross: halfpipe board, great for tricks
– Miis will be spectators in the background as well
– Koopa Troopa will be a playable character
– Coconuts Mall has players driving around a huge mall with multiple routes
– D.K has a new go-kart.
– Names hover over players during online play
– Motorcycles will be playable online as well