An Arc was Planned in the Comics
Though current Archie Sonic comic writer Ian Flynn has seemingly quashed the notion in his ongoing interpretation of the Archie comics storyline, earlier writers–notably Ken Penders–had tinkered with introducing an existing Sonic character as a homosexual.
That’s the word on his message board, where he’s disclosed that Rotor Walrus’s sexuality was to be setup and explored around the years 2003 to 2005. Penders notes he had dropped hints in earlier issues, with a big reveal planned for the Mobius: 25 Years Later arc:
I thought it was fairly obvious Rotor was gay, and begun laying the groundwork for that storyline during the MOBIUS: 25 YEARS LATER segments. I even showed his life partner without saying as such and planted clues between the lines.
It would have been a decision more than ten years in the making. But the gross underdevelopment of Rotor as a base character is blamed for the idea never overtly coming to fruition.
But what if it did? There could have been social implications in the era, especially as gay marriage and equal rights started to spark an ongoing American debate. Indeed, international headlines were made when Dumbledore of the Harry Potter franchise was outed by author J.K. Rowling. Could Rotor, his life partner (pointed out to be Cobar, later in the thread) and in effect the Sonic franchise have been used to rally support? For fans, discussion of what could have been may best serve as a canon debate, especially among fandom more closely focused with the comics and with the SatAM television franchise–where it was a non-issue.