Help for Mother Plant- repot or leave her be?

[Bourdeau]

I have a 10 year old plant in a 12 inch pot with many leaves hanging over the edge heading for the floor. She has four flower sprays right now. She has produced 5 kikies that live in smaller pots near her or have found homes with friends. The “roots” in the bark do not seem sturdy enough to hold the old girl in place. Yet she seems happy. Do I leave well enough alone or try to repot so the leaves grow up like so many in the pictures on this thread? Thanks!