User blog comment:Master Sima Yi/Assassinews 10-05'12 — World Gameplay Premiere/@comment-58.169.41.227-20120511093115/@comment-1153722-20120511093544

Well, Connor is obviously not a Mentor (yet?), so he won't lead the Assassins, but there will be a similar system to Brotherhood and Revelations where you can call for aid from your fellow Assassins. They haven't revealed too much about it yet though.