Credit to Dark_Chris
Warning: major spoilers in the video
Update: the embargo has been lifted, and the official web site is now hosting the new trailer. The bald guy "Jake Muller", Piers Nivan and Sherry Birkin will be joining the RE6 roster, alongside Chris, Leon and Helena. The game will be split into 3 scenarios: Leon in USA, Chris in China and Jake in Easten Europe (Edonia). You can also find screenshots on the site. Additionally, Mercenaries mode will return and you will be access it right from the start.
The PS3/360 release date is scheduled for Oct 4 in Japan Oct 2. The PC release date will be announced at a later date.
Preview articles (thanks to dark_chris and aris13)
Multiplayer Feature article