I'm sure that if we really want to move Marcin on that CFG can find a way to do it. He's a marquee so there are no A-League salary cap issues, and I'm sure that CFG can make it worth his while to spend a few months in a suitable league before he returns home.
However, remember that FFA have to approve all marquees. While this is regarded as something of a formality these days, I don't know that we're exactly popular with FFA, so there's that to consider. With just half a season left before more general transfers occur, we might consider it best to leave things as they are??