Bitcoin Cash is spiking and there is some discussion whether or not Bitcoin Cash can displace Bitcoin. In other words, could it take the name "Bitcoin"? The short answer is no. The longer answer is that it is exceptionally unlikely because it would require exchanges to all agree on what "Bitcoin" is and make the change simultaneously, else risk losing a ton of customers and transaction volume. In other words, the first exchange to call "Bitcoin Cash" as just "Bitcoin" would essentially be martyr'ing themselves.
