We all remember the truth video of AC2 where Adam and Eve stole the apple...The Girl in the end cinematic of ACR looked a LOT like Eve so What if she was one of the first assassins and/or people with DNA of TWCB at her time (also notice she's the only one wearing a cape in the video!! very strange!!) and still had the apple with her when the big catastrophe happened and saved her and her little kid from the fire at the end cinematic in ACR so the assassins bloodline could continue...resulting eventually in Altair, Ezio and Desmond. What do you think?
here's the end cinematic: