Trek timeline should always have been going forward so that it diverged the moment TOS went on the air, thus exactly 2265 we get what we saw on screen in 1965. Including 'supermen' ruling most of Earth in the 90s followed by WWIII and the post-atomic horrors etc. Sadly later stories (the Voyage Home, the Royale, the Bell Riots, the Millennium Tower, Ed Begley Jr) didn't really show this divergence.
I did like the Bell Riots' "futuristic" idea of people making videos to be broadcast on private channels but it's crazy they were very limited, private, money-making venues transmitted on cable instead of something anyone can do for free on the internet. Was this part of the original divergence? Or an unforseen effect of removing Gillian Taylor from the timeline? Did someone go back in time and kill the guy who invented cell phones?
Plus that episode was just a total remake of City on the Edge of Forever with Jadzia as Bones but she doesn't go crazy and there's sanctuary districts. Also the tv-guy she hooks up with isn't as important or charismatic as Edith Keelor, but it's basically the same story substituting hobos-with-guns for star-crossed romance. The writers did have their fun little paradox with Adrian Bell so consider that box checked too.
I only heard about SNW showing Jan 6, since I wont watch that shit. It would be cool to see Khan take the White House like General Zod in Superman II in an episode called "Election Interference." That can be in the anthology series Skydance makes once Alex Kurtzman starts burning in hell.