Christopher Hitchens is gone, forever.
He won't be, reborn, judged (except by history), rewarded or punished. He's dirt waiting to decompose now. And I can only hope that he faced death with the courage he hoped for in his writings. Reading an obituary I found that he hoped to die with his wits about him, awake and facing the end. He even had the good sense to request forgiveness from his survivors if, in the fevered heat of a dying man's last breath, he made a death bed confession of faith. He would have regarded any such gesture as hollow and merely wails of pain. I can only hope that he had the good death he wanted.
Death is part of life, the end. We all will have an end, and the only hope is for it to be free of suffering. It is very much worth exploring life extension, cryogenics, and other forms of perpetuation, but we have not known a person older than their 120's since the golden age of myth and bad record keeping. But we can only hope that all people face the end, death, with dignity and freedom from suffering.