Update: The YouTube video we originally posted was pulled. Above, you'll find the entire speech from DICE last night. The Skyrim mod bit comes in at about 21:25.
This is really neat, but let's make the context clear first. The video above doesn't actually show off upcoming Skyrim DLC. Rather, it's a compilation of what are essentially Skyrim mods from the game's developers. After Skyrim was released last year, the team was given one week to put whatever they wanted to into the game.
Howard says pretty much the same thing before playing the sizzle reel for the gathered DICE crowd (via Joystiq). There's some really cool stuff to be seen in there, and it's something that every Skyrim fan should take a look at.
My favorite part though? How this official Bethesda-produced video uses music that riffs on the game's utterly ridiculous "arrow in the knee" line, which became such a popular meme last year. Always welcome to see a dev acknowledging things like that with good humor.