Satoru Iwata announced during yesterday's Nintendo Direct broadcast a new worldwide partnership with SEGA that will see three new Sonic the Hedgehog titles come to Wii U.

The first of these titles is Lost World, which is on its way to Wii U and 3DS. Very little information has surfaced about this one and we can only speculate on the inclusion of dinosaurs.

We know much more about the second title, Mario & Sonic at the Sochi 2014 Olympic Winter Games, which naturally is a continuation of the events-based sports franchise that started back in 2007 for the Beijing Olympics. The game will utilise Wii MotionPlus controls in new events such as snowboard slope races and the GamePad will also be used for events such as curling thanks to the touchscreen.

However, there are currently no details on the third Sonic game, which has naturally sparked off plenty of speculation that there could be a Mario Kart crossover in the pipeline.

Sumo Digital Executive Producer Steve Lycett has recently revealed his desire to find out "who'd really win a kart race" possibly insinuating a Sonic & All-Stars Racing Transformed follow-up featuring characters from the Mario universe.

What would you like this mystery third game to be? Would you be pleased with a Mario Kart X Sonic & All-Stars Racing game? Let us know what you think by leaving a comment below.