Well it makes sense, Nintendo with Zelda has so much potentail Zelda titles: new 3D Zelda, new 2D Top-Down Zelda, Zelda ports/remasters (OoT/MM 3D HD, WW/TP/SS HD, ALBW HD), and Zelda spinoff.
My prediction:
2019: 2D Top-Down Zelda or some Zelda port/remaster (maybe both)
2020: new 3D Zelda
2021: Zelda port/remaster or Hyrule Warriors 2
2022: Zelda port/remaster or Zelda spinoff or 2D Top/Down Zelda