Or at least an IWD sequel in spirit: A game in the same engine as BG3, taking place in Forgotten Realms, but with a more linear main story and you create your entire party. Not that I dont enjoy having companion stories but I do also enjoy a simple dungeon crawler RPG.
Solasta is of course a good but less shiny alternative. I'm probably going back there when I tire of BG3.
I had this thought when I saw a "what should Larian do next" post. It makes total sense to me. They could do a stripped down, combat-focused Icewind Dale game, as sort of an equivalent to a "tactics" JRPG. Then, they could do a Planescape game that is all dialogue/RP focused with minimal combat. And then by that point, the BG3 engine would probably a bit out of date, so they could create a new engine and make a new Neverwinter nights game.
It makes total sense to me, but I was also 14 years old when BG1 was released and the phone lines at my house were too old to be able to play Everquest with my friends, so those old DnD CRPGs were basically my life in high school.
That said, Larian is not Black Isle and they can do whatever they want. I'd be just as excited by D:OS 3 as I would be by another nostalgia bomb like BG3. It's just fun to think about the possibilities.