My wife's brothers were afraid that in a few months my mother in law might not recognize my wife. So she flew back. Other wise, she would not be flying back there in the winter time.
Her niece is one of these super young people. She and her hubby recently served in the Peace Corp in a real third world country. She is just one of the super people with multi talents: a sense of humor, great looks, brains and a sensitivity to others far beyond her years.
My prayers are even more so with the entire family. We went through this with my mother in law.
Please make sure her children are keeping track of the meds she is beiing given. Over medication pushed my MIL over the edge and then the instant stop of them led to her death.
The only other thing I can say is, be there for your wife. Its going to be rough.