The descenders are too deep, as other are saying. I honk you will need to bring in some stroke modulation. The mono-linearity in the /a and the /n, for instance, leaves you with letterforms looking much too awkward. The terminals on /a, /c, /g, and /t, for instance, are all different. There seems to be no system present.
Picking up an idea of Nixon’s, whenever I see someone state that “X is the new Y,” I place all of my bets on Y.
In 20 years – and in 100 years, too – I think it is a pretty safe bet to say that Bold and Italic letters will still be used in many of the same ways, and for many of the same purposes, that they are used for today.
This does not mean that I think “color fonts” won’t have a future. It is just that I think that it is most likely that a new area of use will be found for them, which we have not envisioned yet, rather than they replace some pre-existing element in the typographic repertoire.