I don't think we have to do anything... Bitcoin have 9 decimals and a lot of units, no matter if some of them are unreachable. It is the price for descentralization.
I don't know exactly what to do if it happens, but I know that it all is something that doesn't have a bad way to all things. But nonetheless we should use bitcoin for activity is good, indeed the bitcoin has 9 decimal but that will make us get something good thing is when we can benefit. And that's all we can get when holding comes.So, indeed we should always do the promotion of all persons so that the growth of the bitcoin is getting better and more and has a very big advantage. Without growth promotion bitcoin will only end on something a bad thing