I heard about this on the radio this morning, although the radio broadcast made it sound as if it were back to the drawing board completely. It appears the NYPD has issues with the first 150-200 feet of the building so the total height and the spire will remain.
I used to visit New York on a regular basis for business reasons in the mid '90s. My schedule would limit me to sightseeing and I never did visit the WTC or Lower Manhattan. I did get a chance to go up to the Empire State Building. I wish I could get my hands on the photos I took that day. It would be interesting to see them again.