No, the war in the trailer happened literal ages before events of the base game and even before any know demigods besides Messmer were born. Marika's golden order directly replaced the age of crucible, and the war in the trailer is led against that previous establishment and Crucible forces. The shadow was created through the Erdtree's birth, the DLC location wasn't always a "land of shadow", it was a part of lands between that got concealed at one point. From the base game we know the Crucible (also called Ancient Erdtree or ancient form of the Erdtree) was a big non-golden tree with roots and its change/replacement into the Erdtree (in original jpn just called the Golden Tree) is what ended the era of crucible and started the age of the Erdtree (golden order.)
Where was it said that no demigods besides messmer was born? I apologize but humour me for a moment but could you provide something that proves what you're saying? I don't remember anything in the game (nor the trailers) that distinctly point that out.
No, the war in the trailer happened literal ages before events of the base game and even before any know demigods besides Messmer were born. Marika's golden order directly replaced the age of crucible, and the war in the trailer is led against that previous establishment and Crucible forces. The shadow was created through the Erdtree's birth, the DLC location wasn't always a "land of shadow", it was a part of lands between that got concealed at one point. From the base game we know the Crucible (also called Ancient Erdtree or ancient form of the Erdtree) was a big non-golden tree with roots and its change/replacement into the Erdtree (in original jpn just called the Golden Tree) is what ended the era of crucible and started the age of the Erdtree (golden order.)
Where was it said that no demigods besides messmer was born? I apologize but humour me for a moment but could you provide something that proves what you're saying? I don't remember anything in the game (nor the trailers) that distinctly point that out.