Over on DE's Twitch Livestream, they're running through one of the first parts of the eight-player raids. Lot of Destiny influence there (Fighting off enemies while they coordinate solving a puzzle).
Love how they said "we were afraid of showing off the puzzle, but we know that once it's out, there will be walkthroughs within hours, so we don't care. It's more about coordination and execution rather than figuring out what to do."

http://www.twitch.tv/warframe

(There will be an archive for later on Youtube. It's a very entertaining watch.)