I was putting Hyrule Warriors in September too, but as picandocodigo mentioned above it has "winter" release date.
So could be an empty September or we may get Metroid Prime. Since we don't have any info about Air Riders, I don't think it can be a September release. But I agree, in my mind Metroid seems like their big game for December.
Hyrule Warriors is expected "this winter", so it could slip into next year.
I'm thinking Kirby Air Riders and Metroid will be November and December (don't know in what order), to have a big Christmas title, but I have no idea 🤔
Yeah they said "this winter" in the Direct and it's on the Nintendo.com website. I assumed that meant they didn't have the confidence to say 2025. Or maybe they just have the flexibility in case other things don't fall into place. Either way, I can't wait for new Hyrule Warriors on Switch 2!