I think that one day, there will be a superior coin that will take Bitcoins place because it will be more flexible faster and will have less fees. Those coins already exist, but the community will decide later who will be the "winner" of this contest.

At the moment Bitcoin is the flagship of cryptocurrencies and it will be a few more years. People who have no clue what cryptocurrencies or Blockchain are still heard the word Bitcoin one day. Bitcoin is in the news and famous people speak about it. Thats why it is so popular and this is why its currently the #1 coin.

But for the moment it will continue to rise. It will rise as long, as people dont know what cryptos are and what they can do. Some day there will be a cut, and a new and better coin will take its place.