For now BTC remain the king in the space and I won't be surpise to see its dominance increase this year, because many projects will fail and some will end up being a scam and as this happens the dominance of BTC will increase. Bitcoin is a good tech and it is being helped alot with no real leader which helps to hold the community together. I won't bet against BTC but do not be surprise to see in future a new digital currency better designed and able to compete head to head with BTC