(Credit: Frances Marshall) English National Opera has announced that the lyrico-spinto soprano Elizabeth Llewellyn will perform the title role in Verdi and Cammarano’s opera “Luisa Miller.” Llewellyn will join a cast that includes baritone Olafur Sigurdarson, tenor David Junghoon Kim, mezzo-soprano Christine Rice, bass Solomon Howard, soprano Nadine Benjamin and bass James Creswell. Alexander Joel is set to conduct the {…}