Bitcoin is the term from where crypto world took the first step and this world has reached many milestones since then so its death is not a practical thought. But if by any means this happens to be true in near future, crypto world is surely going to be affected and the market will be shocked. Trust of the investors and traders is likely to go down. Prices of cryptocurrencies will also go down. But now the market has lots of cryptocurrencies which are very much profitable when traded. So i think death of Bitcoin will surely affect cryptomania to a very large extent but with some time, market will continue to go on.