#3: Halloween Havoc

While this was never a WWE PPV to begin with, the company has shown a willingness to bring back some WCW events in recent years with the resurrection of Starrcade and War Games being prime examples.
Halloween Havoc may seem a tad dated now, but the idea of a holiday-themed PPV special could still find a home in the modern wrestling world.
Imagine the likes of Finn Balor and Bray Wyatt making their way to the ring at such an event. It would be a nice throwback for older audiences and also a way of helping current wrestlers further establish their characters.
It could also prove to be a nice bit of fun in what is normally a bit of a lull period for the company between SummerSlam and Survivor Series.