Ironically, if Roddenberry had approved the idea of linking “Time Squared” and “Q Who” in this way, it would have been an echo of another great show by Borg. In the season 1 finale of TNG (“The Neutral Zone”), we learn that the Federation and Romulan outposts have been attacked by some kind of unknown force.
Maurice Hurley wanted this to stop the introduction of the Borg in season 2; the 1988 writers’ strike delayed these plans, although the Borg’s attack on Jouret IV in “The Best of Both Worlds” later confirmed that the Romulans were behind these previous attacks on areas outside the Neutral Zone.