Gotta say, this is starting to look more interesting the more I see it. The free choice navy battles, looting, Skyrim like open world, nice looking grapics etc., really make you feel like a pirate ARRRRRRGH!!!! uh..... really ain't much to say, the video explain the rest. (Note to self - Really need to learn to put more paragraphs in your topics)

Taking from the button commands, it seem like its running on the PS4. 

http://www.youtube.com/watch?feature=player_embedded&v=KB7X686jKMA#at=249

I love sea games so I am looking forward to this. Hopefully Ubisoft will use the assets to create a proper open-world sea game.

I'm an AC slut.
It doesn't matter how bad the previous game was, I'll still buy the next installment.

Edit: I hope they make some sort of fast travel option. because I see that boat thing getting boring real quick.

I only beat Brotherhood, but I am a fan of the parcore like gameplay, especially in a world like AC4.

The lighting in this game looks amazing. Environments looks like a big step up from the ps360 AC games. Textures look great. I'm loving the 50 locations that we have to explore and the map is huge. Did notice some pop ins which can be ironed out. The youtube compression still fucking sucks and it is not helping these next gen games show off their full graphics.

*edit* I'm also loving the new fast travel points that unlock from viewpoints.

Since streaming and let's plays are becoming a thing, especailly since the PS4 and Xbone are able to record gameplay on the spot. I can see youtube being force to upgrade their video player to run at 60 FPS. They manage to get 4k to work on Youtube, why not framerate.

Lighting, Distances and framerate look better than current AC games.

Yeah they need to do some massive upgrades to youtube.   Especially like you said now that the new consoles can record and upload videos.  I don't see myself uploading to my youtube account unless they upgrade.  I wonder though if we can upload the video more than once to any video site.  They never specifically mentioned it but I don't see why you couldn't.

It looks fantastic.

What's sad with AC is that the gameplay is lacking and that there's no difficulty levels. I mean the game is so ambitious, it has so many features and upgrades, items and stuff, but it's all essentially meaningless since the game is crazy easy. I don't understand how they're thinking.