I think in order to do this they'd have to cut most of the content. I mean, there are 25 companions in just the first game. Nobody could do it justice.
I'm not sure how this would be a limiting factor.
All of the writing is already done, so the only thing that's missing is simply creating the new assets for models and voice acting (If a remake was to modernize the games rather than simply remaster them)
what would be your interest in replaying the original story Baldur's Gate with BG3 game engine?
Would I like to play BG1/2 in BG3 engine? No. I'm not particularly fond of the BG3 engine.
Something like the Pillars engine? Maybe. Pillars 2 with TB would be interesting.
Though this would only be if we could magically poof such a remaster into existence.
The resources and effort that would be needed to properly remaster the games I'd honestly rather get spent on making new games instead. Like, sure the remaster means that the end product will be good (Again, if it's a proper remaster not TLoU or GTA garbage)
But I want to experience new things. New stories. New characters. New ideas. I want developers to move forward and create new classics that will be forever noteworthy, not just sit around making already good games shiny every 5 minutes when we get hardware upgrades...