All I can speak of is my experience... The one year thing was untrue for me... mine has been a slow recovery but I see many improvements since my one year mark. I agree with greenfrog. When my doctor told me this I was devastated. It was awful to live with that thought.

It is something that can be kept in the back of your head, but don't let it get you down. Everyone is different. Heres to hope! In an non-naive way

I see people posting their one year anniversaries here. I remember that day, how discouraged I was and I remember not being able to do what I can now, even with a reinjury. In fact I found a lot of my recovery to come around the year and a half mark.The hardest part for me was around month 8 or so. That was the most depressing, discouraging time. The main difference was the brain fog, it didn't really get better till after a year.