looks like the DS9-R is going to get an "after the fall" treatment like new frontier, where the story line will jump forward a few years and the the fill in the backstory to events as the story in the new time progresses
No, it won't. Any more than Admiral Akaar's appearance in Taking Wing
and The Red King
required pushing the DS9R forward, or Tuvok's appearance in same required pushing the VGR Relaunch forward. Just because we get a glimpse ahead in one character's future, that doesn't mean the whole series is forced to skip over what happens to the other characters in the interim.