I've had both SoA and ToB installed together from the start of my current character's campaign, and I have saved games near the end of SoA as well as saved games in the middle of the first chapter of ToB.
What I'd like to know is -- Will my Aerie romance carry over if I got to about the 21st LOVETALK state flag before finishing SoA? She hasn't initiated any dialogues in my ToB game yet, and I've played it for more than 3 real time hours. I'm wondering if I should go back and replay from my SoA saved game, finish up some quests until the romance is completed and THEN move on to ToB?
it will carry over if your AerieRomanceActive variable is set to 2. Just enable CLUAConsole and use "CLUAConsole:SetGlobal(AerieRomanceActive, 2)". At least I think that's the format or just use Shadow Keeper.