There has been no annoucement, and given how different they are (and the fact that webCoRE is still community-developed, even if now available as a built-in app) — and how complicated and significant such an effort would be — I would not expect anything along these lines, IMO.
If you've got things working in RM, however, there is no reason to change. And which you prefer is just that: a preference, no matter how strongly some people may feel about one or the other. There is also no reason you can't use both, using whichever for whatever you think suits it best.