I really hope Wizards isn't relying on larian to fill in the gaps in their lore, what a frightening idea. The events of this game will most likely end up like the events of most of our other d&d video games, loosely canonical but never actually referenced by sourcebooks or other direct WotC publications, but possibly mentioned or adapted by the novels.
Obviously it is a vague hope but considering that WOTC spent 30 years tearing up Forgotten Realms cosmology only to leave even more gaping holes I don't know how they are going to fix it. Another possibility is that WOTC just doesn't care because the youngest generation of whippersnappers entering D&D just don't care about the history and they feel they might be able to get away with it without further clarification. Obviously I am just spitballing.
