Is there any ending or not?
Bitcoins will never had its ending because as long as people are interested on cryptocurrency then the price will continue to rise, demand will always increase as long as there are a lot of people who will hold their coins.
The world is turning towards cryptocurrency and it is obvious that in the future the whole world will use cryptocurrency as their legal currency. So there is no chance that bitcoin disappear from the market and will end. Day by day the importance of bitcoin is increasing and more people are investing in it, because they know the importance of bitcoin.