The hideous wig plus fact that he "upgrades" to the ridiculous Liefeld costume makes me suspect they're true, since it makes it seem like he's a character there to be the butt of jokes. I can see the EXTREEEEEME members of the team like 90's 'Star and Bedlam getting picked off during the air dive as a trope subversion. Plus Negasonic being gay/bi would be one way to deflect any backlash that would come from splatting a character that's LGBT in the comics, especially since she's a lot more likely to be a mainstay of the franchise than Shatterstar.