It appears that there will be no blood or piledrivers during WrestleMania week this year.
According to John Pollock of Post Wrestling, the Louisiana Boxing & Wrestling Commission confirmed that there will be no blood or piledrivers allowed during any WWE events during WrestleMania 34 week in New Orleans. That means Takeover, WrestleMania, RAW and SmackDown will not feature any blood and piledrivers (which are already banned by WWE) will not be permitted.
(Thanks to Cassidy Haynes of Bodyslam.net for passing that along)