Known Nintendo insider and blogger Emily Rogers stated that she’s aware Nintendo has two unannounced Wii U ports in development for the Nintendo Switch.
You can guess which they are. She also says in the same thread that Nintendo will be focussing on Animal Crossing: New Horizons this first quarter. That could mean the traditional start of year Direct could be an Animal Crossing focussed blowout.
Wii U Ports incoming …
I can also confirm that Nintendo has (at least) two more unannounced Wii U ports. They are not difficult to guess because there aren’t many Wii U games left to port.
Well ehh Paper Mario Color Splash, Super Mario 3D Land, and Pikmin 3 are the ones that come to my mind. Of those I don’t think Color Splash is likely and I would rather prefer Paper Mario – The Thousand Year Door then.