"Personal opinions aside, now we know some features based on languages: race languages (especially the half-elves that have extra), backgrounds and feats("linguist" came to mind for their extra languages and the ability to create your own) would have to be tweaked or simply eliminated because different languages would not be used in BG3.
"
I agree, but which game implemented detailed languages?
The unique CRPG which I saw incorporating language is believe or not, Gothic 2 - RETURNING. To be able to read powerful grimoires which are all written on demonic language(abyssal in D&D therms), you need to convince with the righ dialog lines Kreole to teach it to you. Most tablets found in jharkendar are written in ancient language and you need to learn it to read then from Water Mages. Orc language is required to do many quests and a isolated orc and a book in Xardas old tower can teach it to you.
A lot of orcs doesn't speak "common".
Other good thing about gothic 1/2(vanilla, no modding required) is that you start as a nobody. Wanna learn magic? Find someone able and willing to teach you. Martial attacks, your stance and animations also chance when you pay for someone to teach you.
