Dominance would be relative until good currencies hits main stream.
I am so glad this happened in 2017 and right before the new year. As of now it is hanging somewhat around 16k which is a nice price to stick on.

-Amazon has already bought domains with bitcoin and ethereum names in it.
-Lightening Network seems ready for testing
-Nasdaq planning by mid 2018
-Bank of america coming up with an crypto exchange
-Many future options in 2018 than only CME

Also many countries like Russia, India, China and others are working on some regulations for digital currencies. Excellent things will start to happen in 2018. I guess the rocket will leave the earth's atmosphere in 2018.

Just HODL and hang on to the rollercoaster.
Invest wisely with lots of research. Cheers!!!