Carbon is what could someday be a real successor to C++ in my eyes. It actually focuses on being compatible with C++ code similar to how Kotlin can work with Java directly, except it will make a lot more sense once it is stable and usable, I just hope its not a 'forever-project' like Fuchsia.
Good point. Many of these other languages claim to be "successors", but are really C++ alternatives, that can have very different programming philosophies, goals, and use cases.
