Perhaps I'm a pessimist, but from the launch of the first mainstream OLED tvs several years ago, I've been hearing "OLED is just a stopgap, Microled is where it's at, and that's not far off now".
Ten years later ... oled is still where it's at, or LCD for a lot of people. I know these things take time, but the anticipation of this tech seems to have lasted at least a decade so far.