I'd have to double check the map that RCID has for this topic, but if I remember right, the majority of the available, contiguous land is either conservation/wetlands, or unsuitable to build on. There are pockets of suitable land, and a few larger plots, but for the most part I wouldn't expect any major projects outside of currently built up areas. The wetlands may be suitable to build, but they would also have to mitigate the loss with designation of other wetlands equal or greater to what they reclassify to build on elsewhere.