Sony is really random when it comes to exact embargo dates, but they definetly are set according to their rough expectations most of the time. Here is a recent list:
- God of War (94 Meta): 8 days before release
- Gran Turismo Sport (75 Meta): 0 days (launch date embargo)
- Uncharted: The Lost Legacy (84 Meta): 5 days
- Horizon Zero Dawn (89 Meta): 8 days
- Uncharted 4 (93 Meta): 5 days
- Until Dawn (79 Meta): 1 day
- The Order: 1886 (63 Meta): 1 day
- Beyond: Two Souls (70 Meta): 0 days (launch date embargo)
So if the embargo is on launch date it doesn't seem likely it will score above 80 in any scenario. If it's 1 day prior it can score anywhere between mediocre or decent/good like Until Dawn. If it's like 3-4 days we can definetly expect 80+.
5-8 days like Uncharted, Horizon and God of War is already pretty much out of the question since review copies would have needed to have arrived by now (which I can't find any indication of). They usually arrive 7 days before the embargo lifts, so if they arrive by Wednesday it's a good sign, otherwise it's either bad or a complete crapshoot since Sony is not sure how reviewers will react (perhaps due the controversy).