I think there are a few options if they ever do it. They could possibly put it directly above the 2nd deck, making a sort of roof over the second deck. I doubt they would put a 3rd deck behind the 2nd, and it very well could have a different pitch.
What I envision is:
They extend the Jack Trice club, all the way to the bottom, possibly on both sides. This would be a massive increase in club level seats. But also decrease the number of donor seats in that location, and shift the donor sections further into non donor sections etc. This added club revenue, would not only help pay for a 3rd deck, but also drive the need for more "cheap seats" after the donor seats take up more of the none donor seating.
Then if they did the same thing, on the West Side, adding a club section in the center of the lower bowl, it would require the removal of several suites, to make the club amenities. This would then push the need for more suites somewhere else, ie a new sky box.
That is one option.
Another would be to build a new skybox and "hang" a club below it above the west side 2nd deck. But those club sections would not be as valuable as ones in the lower bowl.
The biggest issues, cost, how much value there is to club seats in various locations, and the demand for club seating, can we fill club sections that size on one or both sides?
All of this would be very expensive, and I dont see any of it happening until at least after CyTown is fully complete and revenue is coming in from it.
