Eu acho que é um pouco claro, embora pareça que o personagem continua a existir no presente. Baseei isso na última aparição do personagem (que ocorre depois daquilo que você citou) e no que se seguiu:
We last see past-Gamora as Quill encounters her near the finish, I think, of the big climactic battle, after she and present-Nebula have killed past-Nebula. (I've seen it once so I'm relying on imperfect memory here.) As he touches her cheek, past-Gamora kicks Quill in the nether regions (twice). Then she asks Nebula, "This one, really?" Nebula answers, "It was either him or a tree." This gives the impression that Nebula has, off screen, already told Gamora about her relationship with Quill. Having now met Quill, past-Gamora is not impressed. I also had the impression that past-Gamora survived the battle, although we don't see this on-screen. The moment where we see Quill searching for her, immediately before bantering with Thor, suggests to me that past-Gamora has stayed in the present but slipped away rather than joining the Guardians. However, that's merely an interpretation. I do agree it potentially sets up "Guardians of the Galaxy 3: The Search for Gamora."
Uma das cenas deletadas a serem incluídas no DVD do Endgame foi lançada em julho do 26, 2019. Ele revela que Gamora sobreviveu ao ataque de Tony e mostra ela se virando e possivelmente se afastando do campo de batalha. Fonte: Artigo do USA Today com cena.