Eeeeeeehhhhhh I wouldn't call that a precedent setter just yet.
You see, Scarlet/Violet was always planned for holiday 2022. And inbetween BDSP being set for a holiday 2021 release, they needed somewhere to put Legends Arceus. And what's important to note here is that, because of Pokemon day and the way they announce new games, PLA could
NOT release any later than February 27th 2022. You can't just release a game while you're in the middle of hyping up another one. Well they could, but it'd be really weird and confuse both the marketing and the consumers. So with all that said there was really only one month PLA could drop in, January.
The circumstances are different now, and I personally feel like Legends Z-A will arrive somewhere around March/April-ish. Should this be the case, gen 10 would not see release next year. Which serendipitously would allow it to release during the 30th anniversary of the franchise in 2026, and TPC has a history of dropping new generations on 10-year anniversaries. They've done it every time.
So I'm not betting on two Pokemon games releasing next year, it was probably a fluke due to awkward release scheduling.
Not the new precedent.
Of course I could be totally wrong, but as a Pokemon Master I'm confident in my thought process