Those Cardassian orphans could be a part of the future of a new rebuilt Cardassia. But I don't know if they would even be accepted in Cardassian society if they were to somehow make it back to Cardassia.
With the decimated Cardassian society after the Dominion attack and considering what happened to Ziyal they should re-evaluate their stance against orphans or even hybrids (like the child Cerin Mika had with Dukat). Rugal could help those children. I would also mention Natima Lang. I saw that Una McCormack dealt with the topic in Enigma Tales. Haven't read it yet, so I won't dig any further.