When they do meet again and battle one last time in Rebels, Maul dropped an interesting line that didn’t make a whole lot of sense at the time: “Running away again, Lady Tano?”
After the epic lightsaber duel between Maul and Ahsoka in “Phantom Apprentice” ended with Maul unconscious and in custody of clone troopers and Mandalorians, Ahsoka was left exhausted and unnerved but triumphant. This wasn’t the end of Maul vs. Ahsoka, however, and not just because they’re going to meet again in Star Wars Rebels.