Yes, because as I know bitcoin is created by using block chain so block chain is the first one ever created before bitcoin, and as of now there are a lot of things/project upcoming and rising using the blockchain technology. Block chain is the main foundation in all coins/tokens and altcoins.
For me blockchain survive without bitcoin because many coins can replace if the bitcoin will dead so blockchain needs also in other coins because i think blockchain is the first to creat so that we can transact our coins to sell.