Honestly, we don't need more seats. We need to sellout those seats so that there is good strong demand for the tickets: that drives up the price of tickets and revenue and sellouts are good marketing.
We are never going to have a HUGE stadium like some so it needs to be special in other ways.
Also, once we sellout the seats, then we need to upgrade some of the sections. That is where stadiums make there money nowadays.
Lastly, it seems we really need to find a way to have bigger video boards. Some HS have bigger boards than we do.