After everything in the ever after was done and over with Jaune was given a choice. Regain his youth and return with his friends, or keep his memories and age and be thrown into the past. For him, the choice was easy.
The RWBYverse and it's denizens have been so Hateful towards one person, a person who doesn't deserve it. Talking to the Creator another Lord of Creation has taken responsibility for the poor soul.
He was taken from a world and a future that was doomed into darkness and now He will be given a better life in a whole new world, Free from the Hate and contempt from the previous one.
Jaune has been reborn to a life of peace, will his dream to be a Hero continue or he will choose to be something else