In an large soup kettle, heat oil. Add next eight ingredients. Cover and cook over medium-low heat for 15 minutes or until vegetables are crisp-tender. Stir in the broth, chicken, beans, tomatoes, chilies, brown sugar, cumin, coriander, oregano, Worcestershire sauce and salt if desired. Bring to a boil; reduce heat. Cover and simmer for 1 hour, stirring occasionally.
In a small bowl, combine the wine or broth, cornstarch and chili powder; stir into chili. Cook and stir until thickened.