Are you serious OP? bitcoin isn't dead actually it totally shines this year from $200 in 2015 to $655 as of today and many online stores are going to accept bitcoin as a payment processors.
2016 is probably 2nd bitcoin's golden year.
bitcoin will never die as long as always there are demand and supply, but the challenge is there are some competitor out there, as we see etherum , bitcoin might be a mother of altcoin, but we can't predict the future, i'm just too afraid that there some inovation will replace bitcoin in future, and the community prefer use them than bitcoin, hoping it wouldn't be happen
The bitcoin can only be killed by its developers, like the Ethereum. But there are two versions of Etherum now.