What i'm saying is that solid series are over. Any plot twist would be just too forced now considering MGS4, even the dialogue after the credits that used to make a mention for a next MGS were only a joke this time.
The only way to continue Metal Gear is creating a new series, like Metal Gear 2nd Generation or Metal Gear something related to the plot. And using new characters and conflicts, using something from MGS is nice, like a biological son of Big Boss.







