That's my two favourite series in gaming and seriously it pisses me off.
Zelda: only uninteresting remakes (WW) or lazy ports (TP) and finally a new original game that is also on NX and delayed to the maximum.
N64 had two exclusive original Zelda, Gamcube had 1, Wii had 1, Wii U has zero.
3D Mario: only the spin off 3D World on Wii U but this isn't the same thing and category.
On N64 we had Mario 64, on GC Mario Sunshine and on the Wii the two Mario galaxy.
The way Nintendo treated the Wii U was very bad. They basically gave up ambitions with their main series.
Great games like Xeenoblade and Bayonetta 2 saves the day or the solo adventures, it's the desert outside of that. For the multi Mario Kart 8 and Splatoon saves the console from being a bigger failure.