German CoD Community Manager Cloud tweeted that the preload for PS4 will probably start at 3rd november.
@Spletrix wahrscheinlich ab dem 03.
— ATVI Cloud (@ATVI_Cloud) November 1, 2015
![Black Ops 3 [EU] PS4 Preload – 3rd November](https://destroyrepeat.com/wp-content/uploads/2015/11/preload-4.jpg)
German CoD Community Manager Cloud tweeted that the preload for PS4 will probably start at 3rd november.
@Spletrix wahrscheinlich ab dem 03.
— ATVI Cloud (@ATVI_Cloud) November 1, 2015

Sony have finally announced via the Black Ops 3 product page the date the game can be pre-loaded. Pre-load can begin on 3rd November.
Source: reddit.com/r/blackops3