(Credit: Javier del Real/Teatro Real, Bayerische Staatsoper, Prudence Upton/Opera Australia) This weekend will showcase numerous leading divas and a number of new productions that will entice opera lovers. Here is a look. Anna Bolena – Opera Australia, Australia Ermonela Jaho takes on the title role in Donizetti’s demanding opera. She is joined by Leonardo Cortellazzi, Carmen Topciu, and Teddy Tahu Rhodes and conductor Renato {…}