BONES（ボーンズ）-骨は語る- And Booth In Season 5: Maybe Baby? 

A baby? I've always thought if Bones ever wanted to have a child, she'd asked Booth to be the father because of his Alpha Male status. Hmmmm. It's kind of like when Scully asked Mulder to be her donor. But I don't think Bones would want something so, um, sterile. This is going to be interesting to say the least!

OMG okay so I totally was thinking the Bones creators/writers are really GREAT to us fans, which is probably one of the reasons we love it so much!!!! But seriously they keep us in the loop, they want to tell us things, it is sooo different from the other shows I watch, its insane!!!! In a good way!!!!

yeah but ppl will ask is tempeerance still going to have the baby and hart or barry or who ever will just say maybe because they want you to watch and find out for your self. it a bummer i know but we only have to wait till september and it isnt that far away