Trademark !!
i am not saying this doesnt have value, people who buy tm domains might see some value on it or if any opera theatre is interested in it thats my opinion but most of us here will say its a trademark domain and ofcourse its parked , so if the company is to get a udrp for it , you will loose it easily because its their trademark. You can make arguments that its related to another "opera" the singing act but i would be careful with parking because if it shows any content thats related with the Opera browser , its going to be easy for them to establish bad faith. So i guess making a mini site with opera content, new events , news such such would be nice than parking.
just my opinions