You can already have group interactions with her. Either by bringing an NPC to her, or bringing her back to where NPC's are. I've even had her follow me all the way to silverpine before. One thing to note about group interactions though. After 3 turns she will still kill you, it is 3 of HER turns, so after she has spoken 3 times in the group conversation, she will always kill you, no matte what the other NPC's do. If you use a potion of allure, she will be friendly and not kill you and you can actually have group interactions. Oddly enough, NPC's seem to act familiar with her, already know her by name, and don't seem afraid of her at all despite if you mention the thing in the deep woods, they all flip out. But if you bring the "thing in the deep woods" back to silverpine, they act like she's an old friend.