Personally, I'd like a release date for both of the Pokémon Scarlet Violet DLC(s) (<- The Hidden Treasure of Area Zero). As the exact dates have been left unknown besides 'Fall 2023' (Teal Mask) and 'Winter 2023 (The Indigo Disk)'. I'd also like more information/gameplay on Detective Pikachu Returns (releasing October 6, 2023). I've already pre-ordered it physically, as I'm super-excited for it.) (loved the first game on 3DS and the movie). As for even bigger hopes, maybe a new mainline Pokémon game? There's speculation about Johto/Unova remakes/ Legends games and stuff like that. But, I don't trust rumors/leaks really. Because it's not officially confirmed.
Realistically, what I think we'd see is stuff about Pokémon Sleep (since it recently released), Pokémon Go, and Pokémon Unite. Probably Pokémon Cafe Remix as well. Pokémon Master EX is still operational as well.
Everything else is up in the air, I guess. The Pokémon Presents will be about 35 minutes long.
From Serebii.net:
