Complex sentence: Currently, the stadium is being demolished (with both football clubs playing their home fixtures at the rebuilt Stadio Olimpico), and will make way for a new stadium due to be opened in 2011.
Split into simpler sentences: Currently, the stadium is being demolished, with both football clubs playing their home fixtures at the rebuilt Stadio Olimpico. It is in the process of being demolished to make way for a new stadium due to be opened in 2011.