The ending of "Stargirl" Season 2 shows that the new incarnation of JSA is able to rise above the sins of the previous generation, as the young team handles the Eclipso situation with a decidedly more effective and less murderous way than the original squad. What's more, the team actually joins forces with a number of the supervillains they've faced so far to defeat the nightmarish entity.
On the surface, this seems that a lot of the dynamics between characters will shift in Season 3, especially since a whole bunch of the villains decide to hang around in Blue Valley for various reasons of their own. Considering that a teaser for the season (via TV Promos) reveals that it'll be known as "Stargirl: Frenemies," this will indeed be a major theme.
Frenemies or not, the fact that Blue Valley now has more metahuman firepower than ever is probably just as well, seeing as the stinger of the Season 2 finale sets up the likely villains of the next season: The Helix Institute and its apparent leader, Mister Bones. In the comics, this powerful character is a metahuman whose invisible flesh is deadly to the touch. While it remains to be seen whether this will be the case with the "Stargirl" incarnation of the character, the final moments of Season 3 reveal that the many superpowered folks in Blue Valley have piqued Bones' interest, and he's likely to be a major player in Season 3.
