I'm not also sure but i have many guesses .We will be judge by God that we will be going to heaven, purgatory or in hell.
And maybe we will be reincarnated or rebirth. Maybe we will be reborn into another world. Maybe maybe we will become who we should be. And many more all i can say is that we will know it when we die so we just need to live then dont be afraid of dying because God is in with us.