i do this question because i´ve read in this website issues with bitcoin, slow mining process, high fees, etc. and i´ve read too good reviews of some altcoins, ethereum (smart contracts), ripple (for transfers between banks), dash and nem. these altcoins called 2.0. could bitcoin become just in future virtual gold reserved to companies and rich people?
anything can happen, but I do not think bitcoin can be replaced by other crypto currencies because bitcoin is a crypto king and bitcoin is still a favorite coin.
It I the most favorite coin of the world people love to buy bitcoin and to hold it so till now there is no coin better than bitcoin, it will take much time to make some new kind of crypto currency and then to promote it in the market and find the investors for it, bitcoin has achieve the goal it is the most famous and liked currency, people trust bitcoin they invest in bitcoin without any doubt of lose so it is hard for sure to replace it at the present condition of bitcoin.