I do remember one season, maybe 5 or 6, where they were very late with the patch. It did not drop until hours before the season started, like Thursday night around 2100HRS. I am having a lot of fun playing it for the first time on my new PS4, i was very impressed with ease of play and the detail in the graphics. When Season 10 starts on the PC, the consoles will get their first season, looking forward to it.
Like the post before me season 5 had a patch hit like 12 hours before season started in eu. I remember the event quite well as alot of my clan had concerns that bugs might not be found until it was to late and ruin early season.
In EU yeah it happened once, but it was still a wednesday patch drop and a thursday season goes live from what I recall.
In NA we have not gotten a patch any later than a Tuesday, and we get seasons on a Friday.
If you read the first paragraph of the article you link to us......
With the new year here and Season 9 right around the corner, Patch 2.4.3 should arrive any day now. However, it looks like today, Tuesday, (which has been the normal day for patching Diablo III in recent history) is not that day.
That being said, if I remember correctly, patches 2.4.1 and 2.4.2 did not release until closer to 5pm PST. So if it does release today, we have another 4.5-5 hours.
In the end, we know one thing, it will release before Friday, January 6th at 5pm PST in NA