Wii Fit + is pretty obvious, since Wii Fit was huge system seller in Japan as well as it was everywhere else and hopes are, that WF+ repeates what Wii Fit did. Also, Balance Board support from third parties haven't excactly been huge, so Nintendo wants to lead the way.
Super Mario Galaxy as a single player core game have less effective shelflife than new audience games, which means that in order to keep Super Mario Galaxy selling, it has to have a sequel. And, since the game sold in big numbers, Miyamoto already had lots of content for it and it was loved by practically everyone, it's no brainer that it got a sequel. Also, SMG2 may also be a good benchmark for NSMB Wii (by sales and hype).
Ei Kiinasti.
Eikä Japanisti.
Vaan pannaan jalalla koreasti.
Nintendo games sell only on Nintendo system.
