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.
Bitcoin is the most popular coin and i think no more other coin that can replace bitcoin, there are a lot of coin but bitcoin is the most useful in my cointry and i think in the other country too.