I think the front end needs a refresh, but I really don't feel the car needs to look like something it isn't. It's an econobox. All they really need to do is make it look like a 2010s econobox instead of a 1990s econobox.
And it sounds like that is exactly what they are doing. Unnecessarily aggressive styling on an unmitigated economy car like the Mirage would just look silly to me.