I don't know if that has been discussed yet. But what do you guys think about the option to make (retrospectively) some decisions for events in BG1 and BG2 (like in Dragon Age - Inquisition or Pillars of Eternity II) for a newly started BG3 campaign. Those decisions then would have some impact on that campaign. For instance we could find books and other material talking about how this one Bhaalspawn (the PC from BG1 and BG2) effected history and (depending on choice) ascended to godhood or not. Or we encounter characters or quests differently.
Does anyone know, if there are such plans? Obviously this is no small thing and would only really make an impact on players, that played BG1 and/or BG2. But I would love that.