Just so we know, he's went to the training camp, played some drills, and even his coach said that he's good.
https://www.foxsports.com/articles/nba/james-harden-returns-to-philadelphia-76ers-training-camp-despite-his-trade-request
Harden left with no choice, but to play with the Sixers, or his value will decrease significantly. I hope he's attitude must change. Yes, he has been a big piece on Embiid's MVP, but if he will not change his attitude, he might be out of the league sooner than we expect. Attitude matters in the league, and we know that.
With this, I guess the Sixers have won the battle. Now, the 76ers are complete, and it's guaranteed that they will reach the playoffs. I'm happy with this development as I was expecting that we would again see a scenario like Simmons in the past where he sat out the entire season while waiting to get traded. Harden is still a superstar; it's just that maybe there's a need for the Sixers to improve, probably a good second unit is necessary as I find them struggling, especially when Embiid is sitting.
He was vocal about his intention not to play with the team anymore. Now that he is back, hopefully, that will not affect his performance. He needs to stay professional and forget about the conflict with the top management. He is a pro; he should act like one.