I think that it all boils down to how much work Larian is willing to put into it. I think that right now they putting more work than they did in dos2 (there are no situations where you have the same dialogue with an NPC because he is related to companion quest for example) but I think that it's still not enough (the game doesn't even address the fact you are possibly not alone when meeting Astarion).
Considering how many options there are in the EA itself (the final act 1 will be bigger) you cannot avoid all such situations.
A lot of it will probably be improved, but I wouldn't expect to eliminate all of them, after all, the game allows you to go to the quests in any order.
