Tempus, the Lord of Time

Tempus, the Lord of Time, has power that rival's Celestia's, but he has been gone for some time now, and he has decided to return to Equestria, but time has not been kind. Can Twilight and her friends help this lost Alicorn from the problems of modern living? Can Celestia and Luna deal with their brother's sudden return? Can I stop making rhetorical questions that is probably answered as yes?

Unlike my other stories, I will promise to finish this, and if I don't, you have permission to smack me. Hard.