Yes. Metal gear Rising. Not Solid anymore. Also, they changed the concept of "Lighting Bolt Action" and "Zan-datsu" to "Revenge".
Also confirms the rumors of Rising being developed by Platinum games alongside with Kojima Productions.
Looks badass. But as Kojima said, Some metal gear fans may not like Rising.
Oh yeah, and I'm not sure, but I think that's Quinton Flynn's voice (Raiden's VA), which confirms his presence in Rising as well.
EDIT: Changed trailer link. Hurry and watch it before it gets deleted.
EDIT2: Thanks for the mirror, soulx.