User blog comment:Master Sima Yi/Assassinews 28-02-'13 — Assassin's Creed IV: Black Flag revealed/@comment-4999424-20130301192619/@comment-4564231-20130302045718

It's funny because it says "Also coming to next gen consoles". I'm assuming that towards the beginning, games will come out for both next gen and current gen consoles, at least for a while. Besides, we've already seen 360 and PS3 box art, so it's been confirmed for them too.