I've always assumed that the borg we see in "BOBW" and "Q Who"...TNG in general actually, are the borg that were sent from the Delta Quadrant when the distress signal from the Borgified Research ship in ENT "Regeneration" reached the Delta Quadrant. I know that the figure of 200 years was mentioned...whether that is 200 years for the signal to reach, or 200 years for a ship to get there, I'm not entirely sure.
So, those could easily be the Borg of 200, hell, even 100 years prior to those episodes that we see, from Kirk's or Archer's era. At the time the signal reached Borg HQ, they may not have had Transwarp capability, hence why the ship has been traveling through space on a mission to Earth for a century or two. Maybe even part of a small convoy. By the time of First Contact, the Borg have developed Transwarp, and therefore the Borg we see are the "Modern Borg". Assimilation techniques could very well have advanced in the 2 centuries between ENT and TNG, explaining the different look as well as the different methods used.
Will the drones onboard the cube have been the ones that left the Delta Quadrant? Doubtful, although we don't know the lifespan of a drone, do we? So even if the cube was full of new drones, because they were assimilated using the method of assimilation used when their ship left home, they mirror the drones of that time period. Almost like an Amish community...a snapshot in time so to speak.
So, those could easily be the Borg of 200, hell, even 100 years prior to those episodes that we see, from Kirk's or Archer's era. At the time the signal reached Borg HQ, they may not have had Transwarp capability, hence why the ship has been traveling through space on a mission to Earth for a century or two. Maybe even part of a small convoy. By the time of First Contact, the Borg have developed Transwarp, and therefore the Borg we see are the "Modern Borg". Assimilation techniques could very well have advanced in the 2 centuries between ENT and TNG, explaining the different look as well as the different methods used.
Will the drones onboard the cube have been the ones that left the Delta Quadrant? Doubtful, although we don't know the lifespan of a drone, do we? So even if the cube was full of new drones, because they were assimilated using the method of assimilation used when their ship left home, they mirror the drones of that time period. Almost like an Amish community...a snapshot in time so to speak.