It was said that Itachi implanted Amaterasu into Sasuke's eye inorder to protect him from Tobi (who was claiming to be Madara).
*From Narutopedia: Sasuke wakes up in a cave in the care of Tobi, who quickly reveals himself to be Madara Uchiha. As Tobi tries to befriend Sasuke by removing his mask and revealing his Sharingan, Sasuke's left eye reacts to Tobi's Sharingan and triggers Itachi's Mangekyō Sharingan which castes Amaterasu, setting the masked man on fire, causing him to retreat into the darkness of the cave.*
My question is, has Sasuke seen Kakashi's Mangekyō Sharingan? Because if he has wouldn't that have triggered Itachi's Amaterasu?
I think the jutsu was a one time thing but if not do you think it will come into play in the comming chapters???