I will try to bring the discussion again to BG3.
IF you could add one, just ONE class to the game, present in previous D&D edition to be adapted into, which one would you add?
I? Red Wizard of Thay. I know that this prestige class in 3.5E and doesn't exists in 5E but IMO Larian could homebrew it in a way that makes sense in 5E. Sadly the unique games which allow you to play as one are NWN1 + PRC mod and NWN2. Is silly in both games how you in mid of Neverwinter can become a Red Wizard, without ever stepping a foot in the Red Wizard's academy. Would be cool if that class involves a sidequest in chapter 2(and only after that quest, your wizard gets the title and his classes change). And yes, Thay had to become present in BG3 if this happens. Would be silly to have a lv 1 Red Wizard of Thay as to even take the test to join their academy, you need AT LEAST tier 3 spells and rank 8 spellcraft in 3.5E meaning that the average student in their academy is probably arond lv 8~11. And even the lowest graduated Red Wizard probably is lv 12.