So I'm about to jump back into querying my young adult urban fantasy. It's about monsters-more specifically zombies, harpies, and vampires taking over the world. I've read the zombie genre is long dead and over used. Am I ever going to get an agent with a zombie story? My query shows other monsters, but are they just going to be stuck at the word zombie? should I change the word zombie to flesh-eater in my query? Or cannibal? Need some advice, or hopefully reassurance on this one from my horror hounds.
vampires were dead after twilight, because of a boatload of imitators and a flooded market.
They were dead before Twilight, because nobody was buying vampire stories....
other than immediately following something that is hot, being part of the crowd of wanna-be's snapping at its heels, there's always a bad time to be writing any given genre, all you need to do is listen to the right naysayer pissing in your well.
Write the book, make it good, and try to sell it. Considering the time, effort, and willpower it takes coupled with how fast what's "hot" changes, that's about the only realistic way to go about things--if you sat down to write a twilight ripoff just as twilight got big by the time your book was done and you were shopping, it would likely be catching the tail of a dying trend or on the outs, unless you did a half-assed, quick job.
Don't let people tell you something is "out", do the best you can with what you write, and if it isn't hot, fix it or trunk it....I'm really not sure there's much else you can do. Maybe in six months zombies will be hotter than Phoenix asphalt.