User blog comment:Master Sima Yi/Assassinews 05-08-'14 – Assassin's Creed: Rogue announced/@comment-24849873-20141103090808/@comment-13471981-20141103104414

ACU appears to be going to be the AC3 way, so no music when freeroaming. No idea on ACRG, but considering it's being made by Ubisoft Sofia, chances are they will have music when freeroaming.