They took a week after releasing skyrim and let the devs just go nuts doing whatever they wanted. They made some really cool fucking shit. Unfortunately who knows if it'll end up getting added as dlc or what not.
After the community wanting mounted combat and spears for years upon years, it would be a cunts trick if they made these things, released an epic video of them and never released them to the public, it wouldn't look good on them.
EDIT: Not that I expect everything in that video to make it to the game, but the mounted combat and spears needs to be released.
