Switch integration makes sense. The system should be more affordable by 2020, and it could position itself as the interactive wand of the land. So not necessary to experience the land, but a nice little value add for hardcore fans. Amiibo support and in-game items sound about right.
I wonder if they'll sell Switches in the land. Offering a portable game console in an environment where a lot of time is spent standing in line is, uh...kinda smart? I guess?