I think we can always have hope that our loved one will find a good path and will be able to be their happiest, healthiest, most perfect self.
For me, my hope for others changed as I learned more about my own recovery journey. At first, I wished and hoped for him to change so that I wouldn't continue to live in fear. Later, I hoped for myself - that I wouldn't continue to be afraid and that I would be better so that HE would want to be better. Still later, I realized that I was becoming happier and healthier, and he was still stuck where he was.
Now, I am grateful for my own journey and for the person I've become. My hope for him is that he finds peace in his own life, wherever he is.