Well at least now that they are working in the Forgotten Realms lack of world building will not be an issue at all 😉
We shall see. Drawing from existing lore without properly introducing it ingame might be a problem in itself. Thats an issue even some original games suffer from (looking at you, but with an affection, Pillars of Eternity).
Bioware did an excellent job in using existing FR lore and characters without feeling off to a complete new comer (like myself). Everything had either a strong set up, was a flavour detail which gave an impression of wider world, and was a nice detail for folk familiar with the source material, or was driven by a strong, relatable central narrative, allowing to accept weirder stuff.
Outside Torment, I never felt it was achieved quite as elegantly in other games. I remember watching early Marvel movies, and coming out with "WTF was that thing or why did that happen" to be explained it comes from comics or is building toward something, but never quite fitting in the currect narrative. I never had this feeling with BG1&2. I might not know who Drizzit was, but his apperance worked.
