I say this as someone who is optimistic about this year.
My only concern about 2020 is that Nintendo might lean a little too hard on re-releases of older stuff as a crutch to fill out their calendar. Nintendo has already officially announced Tokyo Mirage Sessions #FE and Xenoblade Chronicles 1 remaster/remake for this year. I can also confirm that Nintendo has (at least) two more unannounced Wii U ports. They are not difficult to guess because there aren't many Wii U games left to port.
Also, if you aren't into Animal Crossing, then the first 3-4 months of 2020 won't be super amazing for you personally. Nintendo is obviously treating Animal Crossing as their big March title, so that's something people will just need to accept. And as we saw with 2019, Nintendo likes to dump most of their biggest releases in the second half of the year. Which typically makes the pacing for the first half of the year slower by comparison.
Thank you so much for everything you do.