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?
There is a possibility that another cryptocurrency could outshine bitcoin in the years to come. But no matter what happen still bitcoin has already been mark in the history that it became the number cryptocurrency. This instance cannot be controlled since change is inevitable.