If the js ecosystem taught us something is that react and his derivates are going to fall and being replaced by another iteration of new tools very shortly, and then repeat.

Honestly I think in 1-2 years at max reactnative will have the same popularity of Ionic and Phonegap at max, and probably far less if react will fall against the newcomers of the web-frontend space (vue.js, inferno.js, riot.js, etc) as fast as it seems doing right now, remembering closely the time of angular1 eof vs react beginnings.