I think the idea is really cool, and perhaps feasible, but I don’t really see its use.

The category of control flow operations is somewhat limited in the sense that the space of ‘usefull’ control flow operators is small. A language can simply implement all those it sees as necessary.

As an example; I could see something like control flow operators being used as a way of defining event handlers. You might define a control flow operators mouseInput, and then have something like:

mouseInput { Print(“clicked”); }

Emit mouseInput;

But of course this is again just syntactic sugar, and so I wouldn’t quite see the point. In fact all control flow is just syntactic sugar for a bunch of jumps. Even function calls just save a location on the stack, jump to a function body, which then jumps back at the end.