Ouh,my mistake, Kavar ofcourse. I've seen one message from T3-M4 but i had to get it out of him, and it didn't appear to be Kavar and in conversation choices there was even an question that asked if T3-M4 knew who this person was..
The message was about "her" and stuff about the jedi-council, is that what was supposed to be? Anyway,listening to the message it doesn't add any new quests or any new conversations with anyone..