User blog comment:Master Sima Yi/Assassinews 10-07-'13 — Assassin's Creed IV: Black Flag pirate gameplay naval exploration/@comment-3997738-20130711053718

I assume that they'll be releasing the Havana gameplay demo at San Diego Comic Con. This stuff looks really promising though, the seamless land-ship navigation impreses me every time I see it, and the fact that you can fast-travel to viewpoints now is a huge improvement, especially when you see how large the world is.