Since the extended look on the 27th of August, Rockstar has dropped something every single Thursday.
Only exception was 1st of October.
Preload starts November 12th (also a Thursday)
Which leaves us:

We'll see in two days.
Only exception was 1st of October.
- August 27th - Netflix Extended Look
- September 3rd - Dualsense controllers
- September 10th - Controller preorders
- September 17th - GTA VI: The Album announced
- September 24th - Collectors edition
- October 1st - Nothing
- October 8th - Radio station previews AND merch collection
- October 15th - Launch trailer
Preload starts November 12th (also a Thursday)
Which leaves us:
- October 22nd
- October 29th
- November 5th

We'll see in two days.