I believe Bitcoin will be never beaten by any altcoin, especially centralized one, ...
Bitcoin is already beaten by Paypal and Visa and Mastercards. If you believe centralized databases are cryptocurencies, then you have to count them in also.
O mean centralized cryptocurrencies like RIPPLE for example, that are controlled by governments which try to beat Bitcoin and control the market of cryptocurrencies. I think we can find the answer in Mr ROBOT Tv show.