My impression from the interview is that this is supposed to be a cozy game that's more focused on dialogue and follows the usual dating simulation style of listening/reading and responding, leading to different endings depending on your choices, the difference is that this is supposed to be fully voiced, animated, and "immersive" (which honestly just makes me think even more of Summer Lesson). Other than that you can get them to pose for photoshoots. There's gonna be very minimal UI, so maybe you have to ask/convince them to change outfits rather than go through menus? I don't know if it's in VV, but We/Owner have hands now, so while there won't be gifting, maybe we can at least use items to progress the story? Tbh, the only question I have now about gameplay is whither players can move around on the island freely or not, I don't feel like I should expect much else based on what's been said/shown... This game's development time is gonna be 1 year in total right? Almost seems more like a small/side experimental project tbh, even though they were allowed to make it from scratch (but if you think about it, most games made from scratch tend to be small, and usually they become the base for future games).
And while I still have hope for a new FG DOA game, I have much less hope about DOAX (or DOAXBV). Will DOAX4 ever happen? I don't think we'll ever see a new game in the future where we can actually play volleyball with the OG DOA cast (none of that RNG crap), let alone see jet skiing or all that other stuff return.