I worry about her height at only 5'9 she will be dwarfed by Cavill and Affleck. Not what I picture when I picture WW. She will also need to hit the gym more than a little.
She's 2" taller than Tom Cruise and you notice how people don't seem to tower over him in films?
The fact is, people don't have to be bulky to be strong. We've been brainwashed by bodybuilders and comic-book artists to assume that, but genuinely strong people, those whose muscles are for everyday use rather than display, are often quite wiry.
Plus these are people with Super-strength completely unconnected with the size of their muscles...