Question: In this last episode, when the sisters are writing about their personal lives and they show the future kids they will have, Piper is shown giving lunch bags to 3 kids. It shows 2 boys and 1 girl. Why is that? Did she have Melinda? If so, why when older Piper and older Leo are going up the stairs they only show pictures of the boys, Wyatt and Chris? No pictures of the girl shown anywhere.
Answer: I thought they were her grandchildren.
Chosen answer: It was most likely just a montage for the fans as a final goodbye. Also, prior to the episode, Melinda was only seen once whereas Wyatt and Chris were in multiple seasons/episodes and therefore played a bigger part in the story.
Question: How is it that when Piper and Leo go to the past before Phoebe is born, Patty already knows about "the charmed ones"? I have been under the understanding that they are the only ones in existence, so how does she know about the concept of "The Charmed Ones'? Was it a prophecy or something?
Chosen answer: Yes, Melinda Warren prophesied that each generation of Warren witches would grow stronger than the next, culminating in the arrival of three sisters. Each having one of her powers.
Answer: I am assuming when she mentions two things: (1) "So that Paige could pass on all that she'd learned, not just to her own children, or to mine, or to Phoebe's " (2) "Which filled the time between when we were doing the fighting, and when our kids were old enough to take over" the lunch bag was probably Chris and Wyatts' kids...and all the kids coming into the house at the end were ALL the kids or grandkids.