Not to be a Debbie-downer for the folks who want this to be tall, but I doubt the manufacturing building (and lab/office) will be that tall--this is a large parking lot, large enough for a wide-broad building. For instance, in Wilmington, Incyte Pharma's new lab/office building in only 6 floors tall, and roughly 200,000 square feet. When it comes to pharma manufacturing and laboratory space, I've noticed these building are usually wider, rather than taller, and really emphasize function over architectural form. For example, the Incyte building has long skinny windows due to laboratory requirements (minimum sunlight exposure).
edit: Brandywine's 3151 Market building is 14 floors planned, 472,000 sq. ft, and labs/office/retail.
Like summers said though, we will have to see what exactly Spark has planned here, and the sq ft break down for each use.