Kinda disappointed hearing this news.
It must be pretty massive, and draining to their money/resources for them to go this route for the game. Sure they could have done a remaster with pretty graphics, and trophy/achievement support, but how well would it have sold to casuals? Most hardcore gamers would have bought it.
SE have so many projects going on, this feels like how Konami released MG ground zeroes to recoup money, because of the long development cycle of MGSV.