Nintendo of America’s product marketing manager Bill Trinen says that in order to transfer an account and associated purchases from a Wii to a Wii U, both machines will have to be connected to the Internet. The process is not unlike to 3DS-to-3DS XL transfers.

“Essentially you’ll have your Wii and you’ll have your Wii U,” said Trinen. “Those two will connect and the data transfer will happen and you’ll transfer the SD card over. Then you’ll have access to the digital content that you downloaded for Wii and you can play that on Wii U.”

Also, while the Wii U does support NFC technology, no launch games will make use of it. While Skylanders Giants uses a type of NFC, it was found impracticable to use with the GamePad.

Source: 1UP