I agree on the last part for sure, though I think if there are enough third party games (yeah, not terribly likely I know) that two games could be enough day one. I could see maybe two games incl. Zelda, plus a remaster. Hmm. Or three and then a couple more a month later, a la GameCube. GCN did it really well for those first couple months. Wave Race, Luigi and Rogue Leader at launch --> Pikmin and SSB about a month later. Not in terms of fan favorite games, I know, but just in terms of pacing the launch.
https://en.wikipedia.org/wiki/List_of_Nintendo_GameCube_games
I mean, then we had nothing till June and August with ED and SMS, respectively, but...hopefully the consolidation of HW will help prevent droughts. (We then had Animal Crossing in August... Star Fox in September... Mario Party 4 in October... and Cubivore and Metroid Prime in November.)
With Wii it was Excite Truck, Twilight Princess, Wii Sports day one. Wario Ware two months later. Wii Play three months later. Super Paper Mario a couple months after that. Mario Party 8 in May. Big Brain Academy and Pokémon Battle Revolution in June. Mario Strikers in July. Prime 3 in August. Barrel Blast in October. Radiant Dawn, Mario & Sonic, and Galaxy in November.
Interesting mixes of titles to look back on.