One thing I noticed about the poor sales heading into this weekends PPV event is that maybe the company should shift away from the PPV formula they have relied on for the last two decades. Back in the 1990's the WWE only had four or five PPV events for an entire year which gave birth to the "Big Four" and then the "Big Five" (Royal Rumble, Wrestlemania, Summerslam, King of the Ring, and Suvivor Series). I know that it was a price of the Monday Night Wars that the company expanded to twelve events, but now things have changed.
Since the company made the move to giving NXT Takeover events and Supershow events in other countries continuing to have a PPV event every month is a bit of overkill. The reason that this is the case is because there isn't enough time between events to build proper interest for the shows because of the amount of programming the company has at least on the main roster. Think about this there is only five NXT Takeover events for the year and they only have one hour a week to build hype for the events. In my opinion there is been maybe one or two average Takeover events, but for the most part there hasn't been a bad Takeover.
Overall the WWE needs to pull the events that don't draw and rebuild the bigger events that use to consist of the "Big Four." In modern wrestling I don't think there is a need for a PPV every month of the year and quality is more important then quantity. Basically having less events would give WWE more time to generate interest in events that they want to make mean something again like they use to so at least some PPV's can still draw money other than Wrestlemania.
January: Royal Rumble
November: Survivor Series
Now I know that the controversial Saudi shows that would take place I didn't include because I'm not sure when they would have them considering the date of the first event was different last year then this year. Either way though I would have at least two Network Special's not PPV's during the year with one likely in between Wrestlemania and Summerslam. The other would be between Summerslam and Survivor Series with both special's being bridges for the bigger events to come in the year. Hopefully this would help bring the audience back for these important events and lessen the over saturation that has been hurting WWE for the last few years.