Since all Wii U games are available as digital downloads, I'd expect that's the only compatibility you're going to get. They might have some kind of trade-in-yo

Since all Wii U games are available as digital downloads, I'd expect that's the only compatibility you're going to get. They might have some kind of trade-in-your-disc-for-a-digital-download offering, but I seriously doubt it. It would be very un-Nintendo of them.