The game ends and just as the Metal Gear 1 remake starts, you hear Solidus say, "That's enough Jack."
Fade in, and it's PS2 graphics as Raiden sits on the torture table inside Arsenal. Solidus explains that the ending of 2, and the entirety MGS3, 4, Peace Walker, and V were all fabricated by the Patriots as a false history of Big Boss's tragic past involving an imaginary mentor called The Boss, and a simulation of their plans for the future, in which they would fake their own destruction by pretending to be AIs, fooling everyone and killing all of their foes in the process.
Solidus is about to explain what the real history is, when suddenly the world glitches out and Solid Snake, voiced by David Hayter, materializes in a digital void and explains that it's up to you to decide what really happened or not. He presses a button and your console turns off the game and reveals that all your save data has been erased.
The title screen has been transformed into "METAL GEAR SOLID 2: THE PHANTOM PAIN." MGS2 was indeed always Kojima's final Metal Gear Solid.
Is what I hope will happen.