"keeping in mind that rumour that Facebook was removing RN from some of their projects"

Where are you getting that from? The React Native team at Facebook just put out a roadmap that seemed to indicate they were still very committed to the project and investing in it:

http://facebook.github.io/react-native/blog/2018/06/14/state...

"At Facebook, we're using React Native more than ever and for many important projects. One of our most popular products is Marketplace, one of the top-level tabs in our app which is used by 800 million people each month. Since its creation in 2015, all of Marketplace has been built with React Native, including over a hundred full-screen views throughout different parts of the app."