It'll come down to a business decision. Doing so would have to cause enough new sales (this game and the good feeling to Larian that may cause additional future sales) to at least come close to breaking even. Translations are quite expensive unless Larian had someone already working for them who spoke both AND had the ability to translate (much harder then speaking two languages). I wouldn't give up - these games have a lot of text - any translation will take time. Now I wonder if a player with the ability could mod a translation.