A Time of Troubles
Although “time travel” has always been a component in arcane magic with certian spells (timestop) the concept of “time travel” comes into play. There has yet to be any indication that traveling backwards in time is possible, but the distinct traveling forward it possible.
This impacts the individuals who have done the traveling and does not seem to impair or affect anyone else. Currently, only the individuals who have time traveled are even aware that it is possible.