From what I've been told on a couple of tours, the maximum seating capacity would be about 80,000 but that assumes that the entire new capacity is used for individual seats. If the market is there for more enclosed seating, loge boxes, etc. then they would do that and seating capacity would end up being less. I have also heard that, while it is feasible to add additional seating in increments, the duplicated costs of such a plan make it unlikely that they would do that. Finally, the U expects that, if any expansion is ever undertaken, it can be completed in about 9 months so that there would be minimal interruption of a football season (but that would obviously depend somewhat on how they end up doing it).