There was a time where I would be salivating for any tiny morsel of information from the next MGS game; but now, after PO/MGS4/PW... ehhh.
Portalble Ops was terrible; MGS4, even worse, with what it did to the story -- only the gameplay was great; and Peace Walker, while the best of the three, was hampered by terrible controls, repetitiveness, and being on the PSP. Kojima also deserves a slap in the face with a large-mouth bass for what he did with The Boss.
Sadly, announcements of remakes of either MG1/2 or MGS1/2/3 on competent engines will reignite my interest for a new Metal Gear. Even then, though, remakes of the Solid series seems to soon me.
I'm hoping for ZOE3 or some sort of Snatcher / Policenauts stuff, either remakes or reimaginings.