I’m part of a writer’s group where I’ve seen members question whether or not they think readers will be interested in the subject matter they are writing. I’ve never, personally, understood this way of thinking.
We are our first reader.
We should be engaged by the characters and the world we’re creating. The stories we’re writing should be about topics we’re interested in and want to explore. If we’re not attracted to the idea, why would we waste the time? And if we’re not passionate, the story will read as such.
And if we are, the story will find an audience.
Chasing fads or trends in the tv/movie world is an effort in futility. By the time your story is written and read, the tide will have most likely already turned. This is why many experts suggest avoiding this way of thinking. If you’ve been inspired by the current state of entertainment, then by all means write the story, but write it because you want to, not because you think it’s what you should be.

This all boils down to finding your voice, and C.S. Lewis said it best. Writing is already a bit of an uphill grind so we should do what we can to ensure that we enjoy the journey – by writing about what you want.
Happy Writing! 😉