Nintendo has confirmed that it will release NES Remix and NES Remix 2 on disc for the Wii U. While we are not yet sure that it will be released outside of North America, we do know that it will appear later this year.
The NES Remix on disc will be nice for those that elected not to purchase it through the Nintendo eShop. From what we understand, the disc version will not include any additional features or offerings, just the two volumes on disc with some sort of an interactive menu system to get you to the game of your choice.