I will be curious to see what will Larian adopt from D&D for their new Divinity game, but I somewhat doubt rests will be it. It is always a problematic mechanic in computer RPG, and while I hope cooldowns won't come back, there are other potential alternatives to consider.
Larian definitely likes their systems, so leaning into a more systemic world would make sense to me - but I am not sure it is what they are after. Personally, I don't need a big systemic uplift (though I feel the game could use smarter the systems Larian already likes to implement). What I would be satisfied is just a more evocative map design. Larian's maps feel so... fake? Bits of content stitched together that don't add up into an immersive experience. There are bits in BG3 that work for me, but just bits.
I suspect, however, it is a result of a different design philosophy and at its core it won't change. I want them to really consider setting and story first and foremost, but I suspect it is just not how they do things for the better and for the worse.
