I don't think we can or should expect new content be it primals or coil. Spring 2015 is a pretty wide range. They are 3 days late technically speaking.

I wonder where the "original estimated date" came from. Was it your hypothesis or did I miss something? You also seem to know loads of people will stop playing based on WoW's over a year content drougth. Time will tell.

People have patience. It also does not hurt to take a break and wait for 3.0. If there is not enough incentive for you to play at this point, why play? It seems like you agree with the reason they gave why they chose June 23rd. That should be enough reason to wait or come back for 3.0.