Is your opera staging in tune with the current trends? Is your revival stuck with a bathtub when everyone else has moved on to radiators? I think it's time for a Regietheater version of TV Tropes.
We can start with red heels, the footwear of choice for ladies tortured by society. Best paired with a pinkish cocktail dress:
Yes, I know the Traviata is not exactly new. My other examples are a little more current.
This isn't meant as a value judgment; I liked some of these productions very much (and I haven't seen them all). And some of these are just amusing similarities.
Does your plot concern layers of artifice and performance? Many operas do. Or if your rep staple does not contain sufficient navel-gazing already, you can always add some. Putting a mini-theater onstage seems to be collectively considered the shit right now. Ideally, this theater is a smaller version of the theater the audience is currently sitting in. Usually I love this kind of meta thing but this particular trick may be in the process of jumping the shark due to sheer overuse.
I couldn't find any pictures of scenes for the next one, but here's the object in question (though it's usually a can, not a bottle).
Contemplating the deeper mysteries of life/love/everything is an activity best done in front of a starry night sky. I may be a little tired of theaters-inside-theaters but I think they still can be effective. I don't really care what kind of beer the villains are drinking. But I never want to see a love duet in front of a giant abstract firmament again.
still from this trailer video]; Les Troyens, Deutsche Oper Berlin)
Special Self-Conscious Edition:
Any other ideas?