This is kind of just speculation right now, but items on a supposed stock list at Hollywood Video suggest these titles are coming to Wii this year:
3,039 news items
NBA Playgrounds new content teaser
Switch must wait again
A day with Pokemon GO Down Under
Splatoon's Last Ever Splatfest is Coming
And It's Sister vs. Sister
Nintendo President Satoru Iwata Passes Away at 55
Rest In Peace
Nintendo has detailed the return of its World Championship
Do you have what it takes?
Disney Infinity 3.0 Edition Officially Revealed
The Force is strong with this one...
Rumor: Disney Infinity 3.0 Leaked Early
Straight from a Galaxy Far, Far Away...
Mario Kart 8 DLC Pack 2...OH YEAAAAH!
Nintendo should do this more.
Wii's World is not officially affiliated with Nintendo! (but they wish we were).