While discussing Call of Duty: Black Ops 4 in a behind the scenes video, Treyarch hinted that much more content is on the way for PC players, which was the driving reason behind employing Beenox to work specifically on the PC version.
Co-studio head at Beenox, Thomas Wilson, insisted that Call of Duty: Black Ops 4 is no port, but rather a full fledged CoD game that's been developed parallel to the console versions. As such, he claims it has more than a few changes when compared to its console counterpart.
Beenox apparently dug well into Call of Duty's weapon balance and specific behaviours of many guns in the arsenal. Wilson himself pointed out that weapon knockback alone is enough to make the Black Ops 4 experience on PC different to that on consoles.
Additionally, Wilson was asked whether mods and custom game modes are coming to the PC version of Call of Duty: Black Ops 4 answered that they have nothing to announce right now and we'll have to stay tuned. I must admit though, for an attempt to not say no, it's an incredibly encouraging "nothing to announce".
The changes to Call of Duty: Black Ops 4's PC version have a lot to do with Activision's decision to move the game to Battle.net and Treyarch claim Blizzard's input on PC gaming expertise has been invaluable. Nevertheless, Blackout's open beta was locked to 90 FPS, so as to test out the waters.
Speaking of frame rate, Treyarch already announced that the game's PC version will be capped at 120 FPS at launch, as they're testing and optimising server performance. The company has plans to offer uncapped frame rate in the days that follow though, as long as Blizzard's infrastructure permits it.
Interestingly enough, Treyarch claim that the changes performed on the PC version of Call of Duty: Black Ops 4 are actually ones that make cross-play impossible, because it wouldn't provide for a fair experience. Oh and the cover photo actually shows in-game kill zones - don't they look cool?