Are Zombies Past their Sell by Date?

Now a few years ago a famous game designer pointed out that all successful RPGs include zombies.  I think it was Robin D Laws but I could be wrong.  This was extended by others to suggest that a game could be made a success by including zombies.  Back then zombies were the preserve of horror and fantasy fiction, TV and budget horror films.  They were niche.  They were cult.  It wasn’t too many years before that time that rail adverts featured Jimmy Saville and the only undead on a train were the British Rail sandwiches.  We were told it was the Age of the Train.

Now British Rail and British Rail sandwiches don’t exist anymore. The fried breakfasts have been replaced with croissants and a full fat, ethical, posh coffee from a franchise on the renovated station.  You don’t have a brief encounter in the door with a woman as you’re both wearing backpacks and you’d get jammed in place if you tried to pass with a flirtatious smile.  Pretty soon new University students will have been born after BR was broken up.

The X-Files, Buffy the Vampire Slayer, Resident Evil and Shaun of the Dead have happened.  Zombies (along with Vampires and Werewolves) have become more and more mainstream.

Every day on my way to work this week I’ve faced by a Virgin Trains advert on a big screen featuring zombies…

Its now the Age of the Zombie.

So my question is are they now too main stream?  Are zombies past their sell by date?  Have they sold out  like an aging punk in an insurance advert with a million pounds in his back pocket?

What cool monster will fill the niche left by zombies?  Will it be another undead or something else?