But #1: Philly isn't where he was born. He came back here on a mission, for himself. We were able to present an acceptable basketball situation as well, but the #1 reason was because it was Cleveland.
#2: Again, he's going to be 33 in the summer and will turn 34 mid-season. This isn't the same as coming back to the Cavs in your late 20's.
Even then, Love and Kyrie were STILL more seasoned than Embiid and Simmons. Simmons will be a SECOND year player next year. He's a total stud but still just a 2nd year player. He also happens to basically play the same exact position and the same exact way LeBron plays. That is a much more awkward fit than Kyrie/Love was.
I wouldn't rule it out completely, I just consider it extremely unlikely.
I suppose they could work out a back-room deal where they agree to trade Fultz and their draft pick for an all-star. LBJ/All star/Simmons/Embiid. Could change the dynamics and make it more likely. We'll see. Might not be an easy thing to make happen monetarily though (the trade AND signing LBJ)