Not a new game, but I read a rumor that Nintendo is planning on introducing GameCube to NSO sometime around the Switch 2 announcement. There's nothing concrete yet, but the rumors of Nintendo producing GC controllers in the same way they started producing N64 controllers prior to the announcement of N64 for NSO have given me some high hopes.
If they do this and I can play Wind Waker and Twilight Princess in 4K, I will partially forgive Nintendo for being massive dickheads for the past decade+.