As people have said, I don't think it is likely we will get that spell, since it was something that the Twelve lent him. I know it's really REALLY hard to notice, but the moment he casts the teleport spell, you can see Althyk the Keeper's symbol. Althyk is the god of space and time, which is why with this fraction of a second in which the symbol appears, it was made obvious he had taken us in time.

Althyk, the Keeper.