This trailer for Metal Gear Solid 3DS: Snake Eater is just epic. Aside from the cheap jumps that are really only effective when viewed in 3D, the game looks splendid. Hopefully this is exactly what we'll get in the final product. Granted, Kojima Productions did a fantastic job with Peace Walker on the PSP so I wouldn't expect anything less from them.
Speaking of Peace Walker, Kojima has stated they'll be taking elements from the PSP game for this new Snake Eater and it looks like they're including the white circle thing so far. We can probably expect some co-op features as well.
Metal Gear Solid 3DS: Snake Eater will be released sometime next year.