Post Stroke Recovery

My sister 50 years took a massive attack of his right brain. 2 / 3 damaged. She is currently in rehab, the doctor said Neur first day, she will probably never walk again and there is a 1 in 4 chance that she could walk with a cane. It is 10 days after the stroke, sleeps a lot and has the slightest movement in the hip and leg. What are the chances of a stroke, the remaining area of the brain can take over his domain earlier damage. Are there statistics on the recovery massive stroke?

Shes only in middle age, his brain is not that old. Also, although the doctor said that it is a fourth chance, its still very good, compared to 1 in 25 for example.
I really hope she makes a good recovery and walking again soon.

I do not know the exact numbers, but that age, and a serious stroke, I am sorry to say that the rates are not very high.