I will be frank with you and say that there is a future for some Cryptocurrencies . Cryptocurrencies such as Ethereum, Litecoin, Ripple and Bitcoin Origin.

Ethereum rises to the occasion when their needs to be improved for the betterment for the network. Ethereum allows programmers to run their own programs and software on the Ethereum network. More importantly, it allows programmers to convert other programs in separate programming languages into usable, blockchain-enabled programs.
As a result, the entire process of creating a blockchain program has been overhauled, made ten times easier by Ethereum. This innovation lends several real-world industries a potentially revolutionary opportunity.

Litecoin has continued to be on the forefront of innovations in crypto technology and will continue to lead the way as a transacting currency. Litecoin has had Segwit longer and is very likely to be the first to implement Lightning Network or some other innovative solution.

Ripple is most hated Cryptocurrency in the community because it is centralized which this defeats the propose of Cryptocurrency, well this factor only will be the reason for it being a future currency because more corporates are looking into the XRP token.

Bitcoin Origin please note that I didn't make a typo by saying Bitcoin Origin this a upcoming fork that interest me with their approach to the innovation of Blockchain tech.
Origin's innovation initiatives:
Proof-of-Ambassadorship- This system involves designating Ambassadors, or individuals who achieve a good reputation among Bitcoin Origin's stakeholders based on their performance on a number of key variable.
A Multi-State Engine- By creating multiple blockchain/state pairings, this engine makes economic abstraction possible, and it lets participants use each forked token for contracts, transactions, and fees.
Multichain- A serverless blockchain, Multichain gives users the infrastructure to develop their own blockchain applications, regardless of their resources or technical skills.
Blockchain-as-a-Service- By selling blockchain as a service, Bitcoin Origin allows people to take advantage of this revolutionary new technology at a fixed price.

PLEASE NOTE THAT IS JUST MY OPINION!!!