it would be easy to see a sort of pokemon eclipse or version 3 of sun/moon on nx right away. i don't think they'd start things off with a remake like gen 4.
although sun and moon really should have been nx launch games.
3d mario is probably a holiday title. zelda is already a launch title, and i'd also guess pikmin 4, smash for nx, splatoon, mario maker, a new ip, and retro's new game are slated for 2017
2018 is for animal crossing, mario kart, spla2n, 2d mario, mario party etc.
Unsure if you saw it, but Alberto mentioned in trying to port SMM they were having significant dfficulty getting the UCG over to NX, or something to that effect, and that this was stalling progress on a port. So that might continue to hold up a port or mean waiting for a sequel.