here's my predictions
>showing off the shitty gimmick up their sleeve for BDSP, maybe a little bit of 'lol all your old favourites that you already had in the original are here!!! that'll be $69.99 plus tip'
>a more in-depth look at PLA, probably the climbing mechanics and ATB stuff we already saw in the old leaks, maybe a look at proto-trainer battles (because it'd be really surprising if they didn't include them at all)
>PMD2DX revealed for release Q1-Q2 2022, Grovyle revealed as one of the final members of the Fighters Pass 2
call it pure copium for that last one, but I have a gut feeling. They obviously know PMD2 has a very dedicated fanbase, already a lot of assets available for it and a story, dialogue, all that crap in place, so I imagine most of the work would go towards the unique setpieces, Sinnohmon models and coding any features not in PMD1. I won't be surprised if it's NOT announced, but I wouldn't be surprised if it was either, and I'd be really shocked if we don't hear anything about it by E3 next year