It is also clear right Nintendo are "sitting" on a bunch of projects which are either unannounced, or have zero footage:
- Detective Pikachu from Creatures Inc
- Metroid Prime 4 from Retro Studios
- completed project (September 2021) from Retro Studios
- stylish medieval fantasy game Grezzo
- fashion game from Syn Sophia
- 2D game at EPD 8
- 2D game at EPD 10
- 3D game at EPD 8
- something at Vanpool
- contract project at Good-Feel
- remaster at Bandai-Namco
- next mainline Fire Emblem from Intelligent Systems/Koei-Tecmo
Out of all of these, the only one I'd question coming to first gen Switch is the remaster from Bandai-Namco, which seems to have only started recently. Everything else I expect you're looking at as playable on gen 1 and 2 of the Switch.
That being said, I'm not saying this to prove hardware news is imminent. It just points a partial picture of how many games are on the go at Nintendo and I don't think anybody needs to concern themselves over the software picture.