There's a lot of confusion around this right now and uninformed anons. In case you don't know, king zell is a trustable leaker who has always been right in the past, and posted about TWEWY Final Remix before we got the surprise announcement.
According to him, there is Private Pokémon press event in Japan that will start at 10:00 JST, go on for 90 minutes (meaning that it will end around 11:30 JST), and we will get the new Pokemon games news shortly after.
That means the news drop will happen around 5 hours and 30 minutes from now.
Source:
https://www.resetera.com/threads/pokemon-for-nintendo-switch-speculation-thread-3-new-updates-in-the-op.44236/page-264 