Yes, prayers definitely going up. At least they are being given to chance to be together as a family for this last bit, and can hopefully do and say the things they want and have no regrets when he finally passes on. Make the most of their last days together - we weren't given that chance before my step son died in a car accident a few weeks ago. So many things we wish we had said or done, or didn't say or do, and no chance to "redo" now.
God be with them all.