I hope BitcoinETF impact can make the price to explode is the leading cryptocurrency at the moment, so it's behavior in the market will affect other cryptos. I like this interesting review @louisthomas.

A bitcoin ETF would track the bitcoin benchmark index and replicate its daily performance, allowing people with a brokerage account to invest in the cryptocurrency without having to worry about the challenges of buying, storing, and safekeeping it.
In order to be launched as a financial instrument, the bitcoin ETF needs to be approved by the Securities and Exchange Commission (SEC) first.
Considering that the Winklevoss Twins’ bitcoin ETF product has been waiting for approval since 2013 and SEC keeps casting off bitcoin ETF proposals one by one, there is no definitive go-ahead currently in sight.