I voted the third option, 'cause I really don't care, just as long as it is Metal Gear related and has Snake.
A side story would be great especially if it's between MGS and MGS2 'cause we might learn what happened between Snake and Meryl between both games along with the other members of MGS. A remake of MGS would totally be cool too, since there'll be updated graphics and it'll just be plain cool to see the original game like that.
EDIT: That too, Sleazy!