Ah, so Kojima decided to be a good boy and pump out another MGS for Konami?
I can't really see where he'll go with this. Doing another game based around Big Boss would just be beating a dead horse, there's really not any room left for another Solid Snake game (though I wish there were), and I'm not sure if a Raiden game would be able to carry the weight of the main series (and besides, Rising will already be there anyway).
Whatever it is, I'm sure it'll be zany.
...and I'll probably buy it eventually.