NANOWRIMO is fast approaching, and I'm sure the plot bunnies are hop hop hopping in preparation...what to write?
What's next? What's the next big thing?
Because of course, that is totally what you want to write next.
When you write to trend, you are incorporating elements to try and replicate another book's success. But it isn't those elements that made it great; what makes a book great is a magical unicorn of a thing - writing and hook and timing and passion and cupcakes and jalapenos.
So does that mean you should throw your hands up and leave it to fate? No; it just means that you can't force a great book to happen. You can't pop in the elements and expect that to do the trick; it has to be inspired.
Should a current trend inspire you, or totally be the launch pad for your crazy I've-had-this-in-my-drawer-forever wheelhouse, rock on. Publishing is cyclical, and so even if what your passion is now isn't "on trend," likely, there will be a time for it later (unless it's, you know, something like erotica for children 0_0).
So this NANO, let yourself be inspired; and write that next great book.