Square Enix now confirms that Final Fantasy 7 Remake is a PS4 exclusive for one whole year until 3rd March 2021.
This information was confirmed via the updated box game art which displays ‘Playstation Exclusive – Play First on PS4‘.

Despite the latest announcement on the release of the latest technology of Playstation 5 (PS5), it creates a controversy that PS5 will not be hitting our store shelves next two years. Logically thinking, why would anybody promote a refreshed 1997 game into 5-years-old hardware (PS4).
However, rejoice to whoever hasn’t sold their PS4 yet as they could enjoy this exclusive game.