Nintendo needs:
-A price cut. $249 or less for the console will help sell it to more people, as well as making it more enticing as a second console to PS4 / XBOne owners who will not have many games to play in the next 9 months.
-A bundled game. Wii Sports did wonders as a casual game. Why there isn't a Wii U version bundled with the console boggles my mind.
-A unified wallet / account system. People are getting tired of rebuying all of their old games, especially when competitors have cross-buy features. This will help build loyalty too (since you would buy their next console, as you would already have lots of Virtual Console games for it).
-A skylanders type Pokemon game. I somewhat agree withe the OP on this point. Disney saw the success of Skylanders and copied it with DI. They have now sold over 3 million starter packs. Nintendo should have launched this game last year. However, I don't think they need to waste money on TV / movie tie-ins - they are better off just using that money for marketing (TV and movie productions are not cheap). Also, they shouldn't limit themselves to just this, as that would be silly (they would lose fans / other income streams in the process, and multiple SKUs can be confusing).
Aside from the price cut, Nintendo should easily be able to implement all of those ideas.
NFC definition courtesy of Google / Wikipedia:
http://en.wikipedia.org/wiki/Near_field_communication







