The Wii has over 50 million owners that like different types of games. And has over 8 million people in Japan and since Kingdom Hearts 3 is a huge franchise it will be a big seller on Wii.
The development cost is much cheaper than it would be on another console so just like how Capcom made Monster hunter 3 on Wii. Square Enix will want to make Kingdom Hearts on Wii because they will spend lesser money developing it on Wii than another platform so they would spend less and sell more.
The demographics on Wii is more vast than the other consoles so we will have a lot of core, casual and non gamers. Kingdom Hearts is a franchise that everyone can enjoy and all those different types of gamers will buy it even if they aren’t even good at games or new to games. This makes the Wii the perfect platform to put Kingdom Hearts on.











