Dave Farra is in the hospital with him, not a bad idea for a Twitter follow if you're a Lavin fan... As an aside, I've dealt with doctors and traumatic injuries before and I've found that they're NEVER openly optimistic unless things are really positive - they don't want to have to turn around and tell you they were wrong and things are going to be worse, they'd rather hedge and then tell you things are better than they expected. I suspect that his brain damage is minimal and in unimportant areas if they term themselves "optimistic", because that's a pretty strong thing to say for a doctor. The length of a medically induced coma isn't really that big of a deal because its not a sign of brain damage, its a sign of swelling. If they're keeping him under but term things as "optimistic", it indicates to me that his brain is currently safe (i.e. not sustaining ongoing damage due to existing swelling, which can be a major problem). Waking him will increase fluid levels in the head so they need the swelling to go down before they can do that.