As I know to this day, Bitcoin is still the king of cryptocurrency that is unmatched. I only observed from the side of the price that still stood at around $ 6500. But it is difficult to go under $ 6000. I have never thought there would be a substitute for bitcoin for the next. If there is a successor or successor, then I think that opportunity is at ETH. Although not for the near future. The road is still long and must think positively for bitcoin.
There may be a little difference of opinion, because today the price of bitcoin has dropped to 4573 USD (November 22, 2018) so that many bitcoin holders worry that prices will drop again. Bitcoin owners must be optimistic that prices will rise again, maybe not too high. But there is an upward price movement.