Once the BTC ETF approve by SEC there will be mass adoption in local merchant in many countries.
That will be a big time bull run. you can also expect some on the halving of the BTC upgrade soon this year!
if only ETFs are approved then the new bullrun market will occur? I don't think like that because actually ETFs aren't accepted in 2017 but crypto can go up high.
so I think anytime we can expect a bullrun because crypto can go up quickly without having to have big things.