I hate to say it, but while hopeful, it's unlikely.
I've been around the CFS/ME community since my husband got it 6 years ago. There a small handful of people who have recovered, but generally they've been "misdiagnosed" with CFS and then correctly diagnosed/treated. The majority live with it for the rest of their lives. It's also why the life expectancy is only 50 - many simply cannot live with that level of pain/suffering day in, day out without any real hope of improvement/relief. Its a dreadful illness.