>>42972309Ghetsis confiscates her best pokemon for release back into the wild (read: his own personal use or sold off for profit) and gives her a Patrat. She's still a talented trainer and manages to distinguish herself, and as a result gets assigned the more difficult jobs, which is basically open theft. She's quick to grow disillusioned with the team, but has at this point committed several assaults on other trainers under the guise of "liberation". When she starts hesitantly bringing up the idea of leaving it's made clear that very damning evidence against her, both real and fabricated, could very quickly make it's way to the hands of the police if she proves herself unworthy of upholding the team's ideals.
Terrified into submission, Rosa withers. She spends the next few years mechanically going through the motions of her new life, but with her spirit thoroughly broken she never comes close to realizing her potential and languishes on the bottom rung of the grunts. When Hugh eventually manages to rip the ground out from under the organization through sheer spite, the dead-eyed girl with her hair in sloppy buns is barely more than a footnote.
With the final collapse of Team Plasma, Rosa simply vanishes and is never seen again.