It might be a good time for her to rethink the smoking & drinking, her health has taken a big hit. Those both are a big negative to optimal health. The smoking is the worst, it depends on how much drinking she does whether it is a major negative or not.

Her time in the hospital could be used to get thru the nicotine withdrawals.

You can come back from some strokes , it may be quick or it may take a lot of therapy & work, and some folks don't fully recover.

How old is she?
Did she have any other health problems before this?