Re: Christian Science Church Center Renovation/ New Towers
IIRC, 691' is given as the top occupiable floor. Mechanical screens and similar elements could well push this tower past 700'. However, given that we have yet to see really any renderings besides the base, and thereby a lack of exact figures in regards to the top, we are only presuming, though the extra height seems likely.
Edit: I would also like to point out that the rendering included in the infographic above is certainly not from this project, if that's what you were looking at.