Nekotekina, kd-11 and DH, the creators of the best PS3 emulator for PC, RPCS3, are working on a PS4 emulator.
According to what was reported, this emulator is still in a very early stage of development and, therefore, does not run games yet. He calls RPCSX and is being developed for Linux, with no information if there will be a version for Windows.
So far, the most advanced PS4 emulator for PC is called spine. In January, a video was shared by the channel John GodGames Emus showing him running (if imperfectly) 125 PS4 games.
In addition to Spine, there is also the Kyty, fpPS4 It is GPCS4 among the best PS4 emulators. However, they are not as good as Spine.
Via DSOGaming