Here's an extended trailer for Metal Gear Rising: Revengeance. The main points of interest are a slightly lengthened Metal Gear RAY fight and a bit at the end involving a cardboard box. The extensions are of the "blink and you'll miss them" variety, but crazed fans can pour over every little detail.
I'm still remaining cautiously optimistic about the game. Platinum is a little more hit-and-miss to me than it is to some people, but when the studio's good, it's damn good. Ultimately, if the game is fun to play, it doesn't really matter to me that it's not a "stealth" game. So, here's hoping it turns out well!