The connection of Borg to V'ger makes a lot of sense, though it doesn't necessarily have to be so. A shame that the writers in TNG didn't think of it. Course, the change of the Borg after Q'Who from only being interested in technology to one that assimilate everything is the worst offense and entirely within TNG so has other issues.
The strange thing is the Borg apparently assimilated the bases along the Romulan Neutral Zone (stardate 41986.0)...and then went off for a cup of coffee or something. The even weirder part is in Q'Who Picard references the earlier episode. So the Borg were already
aware of the Federation's existence.
So just what was the Borg cube that had been supposedly picking up Starfleet bases along the Romulan Neutral Zone like Pokemon doing with itself?