We had already reported Blackout Mode on the Black Ops 4 beta client at this point in time, when the Beta for Battle Royale Blackout began.
The secret to the appointment seems to be slowly airing, so far it was only known that the Blackout Mode in September will be playable. Now the official Xbox Store (via Reddit) has become even more precise and calls September 08 the start date. This date is not yet confirmed, but seems to be realistic, considering the actual release in early October.
If Xbox players are allowed to participate in the Call of Duty Black Ops 4 Blackout Beta on September 8th, it will probably start earlier for the Playstation 4 players. According to the calculations, the PS4 Black Ops 4 Blackout Beta could start on the 31st of August!
How do we get to the 31st of August? So far, PS4 players had the first exclusive weekend, so if the Xbox version starts on Saturday the 8th of September, the weekend before would be the 31st of August or the 1st of September!
As soon as there is news, we will tell you about it!
