As others have said, I doubt that is true. There is already a third deck, if you will, on the home field side: the indoor suites and press boxes. So it already has piling and foundation to support it on the home side. I'd find it hard to believe that they changed the foundation only on the visitor side.
Regarding the temporary seating, I agree they are ugly, but only when they are empty, in my opinion. On TV, with people in them, it looks fine. If the A.D. has been pondering the retraction of the price increase next year, they could decide to keep the seats and not increase pricing. Granted the revenue from the 2,000 seats probably don't equal the price increase, but it would gain some good will and save some attrition from people not renewing next year.
Has there been a final decision on whether the heating coils will stay? I remember people were debating this.