You heard right! Atlus, Nintendo and Intelligent Systems are joining forces to bring the world the FIRST EVER Nintendo full-blown crossover! Nintendo has never done a legit crossover before with a third-party series like this. So this is totally a killer-app of the highest proportion.
Much more information coming soon, in particular at E3 2013. This news came completely out of left field, so this is a huge development and will go a long way towards satisfying hardcore Nintendo fans and fans of hardcore RPGs at the same time. Hopefully it will be in the RPG or Strategy RPG/Tactical RPG genre, but that remains to be seen.