I understand that if you delete your Wii U login that is linked to your Network ID and you choose to delete the network ID in the process your Mii profile, Eshop balance, and the ability to re-download games purchased under that ID is lost.
However, does that make the games already downloaded to the console in-operable? If you create a new Mii and Nintendo Network ID are the downloaded games still playable, or will you get a license error of some sort? (i.e. game downloaded by another Nintendo Network user).