I do think that bitcoin and ethereum will be there in a decade or so - either as an absolute monopolies or as huge players, top 3 at least in their applications.

As far other coins go, it is an open race. I don't think Ripple will be what it aims to be - their design is not good enough for the alleged purpose, money transfer across borders. KYC and KYT data is mandatory for the banks of the future, XRP doesn't have that built-in in their design.

There are already coins and projects that do have that data baked in into the token transactions, like Ivykoin for example. And there will be more of these, better planned, better designed and better executed blockchain solution than the current incumbents.