Yeh, why would not she have the greatest October of her life, she is just dying of cancer in unbearable pain.
However, I can tell you that reincarnation is a reality and she will be immediately after death reborn on earth, in a much worst situation that is is bailing out of.
I worked out the principles of reincarnation. We are here for a purpose and we were supposed to make our best effort to cope and to learn from it. Bailing out of this obligation is not permitted and you pay for it with your own sweat and blood when you are sent directly back to try to do better.
Having said that, I am very sorry for your pain. Have some faith, let the powers that be decide.
An interesting take on reincarnation....very different than mine but interesting none the less.