Rumors have been swirling for quite some time now that a Metal Gear Solid remake is in development. According to the rumors, the Metal Gear Solid remake is in development as some kind of collaboration between Sony and Konami, though nothing official has been announced at the time of this writing. Solid Snake actor David Hayter was recently asked about the Metal Gear Solid remake, and based on his information, he thinks that it is real.
While Hayter wasn't featured in Metal Gear Solid 5, he has portrayed Solid Snake in the vast majority of Metal Gear Solid video games, including the original MGS game on the PS1. Hayter was recently interviewed by Dan Allen Gaming, and as one might expect, the topic of the rumored Metal Gear Solid remake was brought up. Hayter said that he believed that the remake was "just a rumor" until recently, as he received a text from an industry that suggested it could really be happening.
It doesn't seem as though Hayter has been contacted about reprising his role as Solid Snake in the Metal Gear Solid remake, but the possibility of the developers re-using his previously recorded lines was brought up. Hayter thinks that to be unlikely as the sound quality for the original Metal Gear Solid on PS1 would pale in comparison to modern games, and while it's possible that the voice lines could be pulled from Metal Gear Solid: The Twin Snakes, that's also doubtful.
The conversation then turned to what form the Metal Gear Solid remake could take. As pointed out by Hayter and Dan Allen Gaming, there are really two main routes that could be taken. The Metal Gear Solid remake could use fixed camera angles like the original game but just buff up the resolution and graphics quality to match modern standards. Alternatively, it could be a more immersive, third-person experience with the camera following Snake like in more recent entries of the Metal Gear Solid franchise.
While Hayter hearing of a Metal Gear Solid remake certainly makes it seem more plausible, fans should still keep their expectations in check. And even if it is real, it may be quite some time before fans get a proper look at the game. The rumor is that Bluepoint Games is working on the Metal Gear Solid remake, and that studio just recently launched the Demon's Souls remake. Considering this, it may be at least another couple of years before the Metal Gear Solid remake is revealed to the public - assuming it exists at all, that is.
Metal Gear Solid is rumored to be in development for PS5.