Justice Shadower revamp - which skills get turned into which?

Dark Impale and Achilles don't share the same skill ID, but the mastery from Achilles passed over to Dark Impale, since they decided to do that. None of the new skills share a skill ID with a previous skill, except Fists of Fury/Fist Enrage, which has the same ID as Barrage, they might pull an Achilles->Dark Impale, but I wouldn't know if they did or not in kMS.