On the French gaming website, Playfrance.com, they have received and are showing (via Flash video) a remastered version of the famous E3 2006 Metal Gear Solid 4 trailer.
While there is nothing new in terms of scenes or character/story revelations (it is the E3 2006 trailer), in terms of technical progress, there is a lot to smile about for MGS fans and people interested in the MGS4 game.
The first obvious change is that now the frame rate is smooth, and I mean it is silky smooth. Scenes such as the helicopter/graveyard scene, the Metal Gear chase, bullet sparks, crumbling wall/dust particles, and Raiden's fight are now no longer producing any frame rate problems. It is all smooth now.
There are also some other subtle changes that are probably noticeable due to the good frame rate. There are a few instances of the use of motion blur. There seems to be some improvement in lighting effects and real-time shadowing.
Since this site is in Europe and most of us are in North America, I suggest you initially pause the video to let it completely download first before viewing it. If you have still have a video file of the original E3 2006 trailer release, I suggest you also view that again so that the improvements become apparent.
Hopefully, some website will transcode this into a downloadable file, but for now here is where you can view it.
EDIT: Gamevideos.com also has a flash version, but it is at a lower resolution, and the guy mislabeled it as the TGS trailer.
UPDATE: While not Hi-Def, Gametrailers.com has created downloadable files of the trailer.