CORBA (or D-Bus) was needed in the X11 days, precisely because X11 didn't really provide a better solution. Wayland does. See https://wayland.freedesktop.org/docs/html/ch04.html#sect-Pro...:

> The Wayland protocol is an asynchronous object oriented protocol. All requests are method invocations on some object.

Anything D-Bus can do, Wayland can do. (Except systemd integration, but that says more about systemd than about Wayland.)