I believe BTC will keep gradually rising along woth other cryptocurrencies. The reason for that is the new improvements in the transactions (lighting network), lowering fees, safety measures, etc. And as BTC is the most known representative of cryptocurrencies, I believe it will keep rising.
Also, do not forget that there is exponential growth as people see succes with bitcoins. If I make good money with bitcoins, I will tell this to friends and they will also start investing thus increasing demand.