Actually the baby deal was brought up again the season9 finale, as Mac talks about they being something wrong with her. And Harm brings it up, and says that he will always be there for her. I think that was it, I never saw the season 10 opener. I haven't seen much of this season anyways, but I'm going to watch the last few months for a shipper ending

I'm having fun watching re-runs of the earlier seasons, I've seen some of the eppys from all the seasons but season one. I finally saw when Mac tells Uncle Matt "I found him in a Rose Garden" or something along that means