WWE has changed their plans regarding splitting up The Shield as was teased prior to WrestleMania XXX which reportedly would have seen them split up by this stage.
WWE is now keen to keep the faction together for a while longer due to the strong responses they continue to get from WWE crowds.
Another reason is the grooming of Roman Reigns. WWE officials feel he is future breakout star and main event player, but is not ready for a solo career just yet and will benefit from staying in a group with Ambrose and Rollins.
Source - Wrestling Observer Newsletter
