Actually, I think there's little to be said about it. Most analysts (and especially bitcoin enthusiasts) agree on the great growth that the bitcoin market will have in the next few years, and even some of its biggest detractors are beginning to join that consensus.

I do not know if this growth has sustainable basis according to the great problems and the limitations that begin to accumulate in the bitcoin ecosystem, but at least the speculators seem willing to prolong this growth in the medium term.