>>6040743-Unicron tried to have Starscream turn Cybertron into his new body in "Ghost in the Machine".
-The "erasing from history" effect seen in this chapter is identical to the swirly blue lines seen in "The Agenda (Part III)" and "Optimal Situation".
-Galvatron II hails from the story pages for the original cartoon, which depicted a toy-colored Galvatron as the Decepticon City Commander and not as a reborn Megatron. This Galvatron would later be retconned into a separate character by an e-HOBBY toy, and indeed, the Galvatron featured in Unite Warriors has also been toy-colored all along.
-Grand Scourge is revealed to be a servant of Unicron, not an illogical connection for a Matrix Hunter. Whether this means that he is indeed the same individual as Armada Nemesis Prime, also Unicron-aligned and known in Japanese as "Scourge", remains ambiguous.
-Vector Sigma mentions Sky Lynx helping him in the battle with Tornedron in "Call of the Primitives"—in Japan, the Oracle from that episode was retconned into being the past form of Vector Sigma.
-Unicron swears that Cybertron will be his someday, which will come to pass in Beast Wars Neo.
-Optimus Prime will be revived by a new power source, the Zodiac, in The Battlestars. Unfortunately Roller won't do his job very well, as these stories also feature Prime's body being stolen by Dark Nova.
-Galvatron II notes that he became the City Commander of "Dino-saurer" (ダイノザウラー Dainozaurā), the first version of Dinosaurer (ダイナザウラー Dainazaurā). Trypticon was referred to using the former in "Scramble City: Mobilization"; this retcon explains away the aberrant spelling and the different character model used by the OVA.
And can you spot the Chip Chase cameo on the last page?
That's it, the end of the Unite Warriors story. But one day, that story may continue. UNITE!