Like, if Nate's "March" mention is accurate, considering the venue and context of that, it'd make little sense to mention to what is seemingly a dev-focused conference anything other than either a Release Window, Gold Master Advertising Window, or at absolute stretch, a Switch 2 Presentation Deadline.
Why would developers, ones who either don't have Devkits, or just got them in the last month at Gamescom be told about something like the reveal, a reveal which Nintendo doesn't likely want devs fighting over marketing space for it? (Especially considering the
only third-party title in the Switch's reveal was Skyrim)
So assuming Nate is correct about March, then that would only really leave
- A Switch 2 Presentation as a "If you want your games to be shown off, make sure they have a major slice ready by March where we have our Switch 2 Presentation".
- A window to make sure games are golden within to make for the launch of the system
- The actual release date
Primarily because these are developers, not marketing teams that met up apparently.