They could give us a new starting point easily:

- Have us go to another shard. We're completely fresh there and can ignore any prior lore related to our character including the scions, and make the enemies not center around being replled by the Blessing of Light.

- Have us go to another island - the New World was an example of this. We're completely fresh there and can ignore any prior lore related to our character including the scions, and make the enemies not center around being replled by the Blessing of Light.

- Have us go into the past or the future. A lot of interesting things happened in the past. Our current lore would definitely be out of the window in a different time period. We could go and fight one of the previous calamity wars.

The reason SE didn't start a fresh page of lore with Dawntrail is because journalists frequently approach them and say how much they loved and appreciated having to go through the entire MSQ that gave them a lot of memories, and that would be lost if they were not required to do it.