Looking forward to finding out what kind of feedback and discussion this generates. Some of the changes seem to make the syntax pointlessly different.

    /* Proposed "new" c++ syntax */
    main: () -> int = {
      cout << "hello world\n"; 
    }

    // vs.

    /* Classix c++ syntax */
    int main() {
        cout << "hello world\n";
    }

The "new" way looks a lot like a copy of the newer Java syntax for closures.