Although the implementation of curricula and assessments that align to the Common Core has been a slow roll-out across many states, the standards themselves are close to ten years old now. I don't imagine that anyone ever thought that Common Core would be etched in stone, a perfect set of standards that would remain forever unchanged. But I have not heard of any attempt to revise them, or even any mechanism by which that would be possible.
In my opinion, the best way of coming to a good set of standards would be by some iterative process of revision over the course of many years. If Common Core is to be successful, at least from the standpoint of coherence of the standards, it only makes sense to revisit them after they've been in use for some time and their failings become apparent.
Will we ever see CCSSM version 2.0 that takes into account lessons learned from actual implementation of the standards?