Nintendo has created soo many games in the past 20 years, Donkey Kong, the Mario Games, Metriod, Pokemon. The problem is, they're all sequels, featuring the same characters and villans, and I believe thats what is turning away possible gamers. Everything is the same.
My opinion is that Nintendo should consider making similar games, yet starring NEW people. For example, I think that the big N should make a new Mario game, but instead of the Mario Bros, throw in the Wario Bros! Make it a new experience while keeping the same feeling of the series. With Pokemon, which is the most obvious overused game by now, they should just redo the whole thing, all new PokeMon, mabey alil more grown up with more mutant like monsters instead of cute Pikachu offsprings.
The idea might be stupid, but its worth a try, to spruce things up a little bit, whats your opinions...