(((((((((((((((Bonezz)))))))))))))))))))
you know you and your mom are loved!
It's been over a year and half since I lost my dad the same way as you. My mom is busy with her activities in the community more than JW stuff. But she still goes to double congos (2 of each meeting, doh!) just to keep her mind occupied in the evening. So hang in there and be with your mom. I'm sure it will take many years for her to get over the suddenness of her loss.
What a brave family you are now and don't give up hope on your neice.
Miss ya here,
Joy