My guess is that, assuming we learn anything at all, they will show TH to press behind closed doors. The reason I think it's possible is because MGS is probably being implemented in the Too Human engine (they do have similar gameplay elements, though TH is supposed to be far more expansive). That whole evasive "sometime in the future" in the interview still bugs me, though, and I don't think SK is big enough to do two games at once (even if they use the same engine).
More realistically, I think we'll be hearing more about TH at the next E3.
BlackGriffen