Structural engineer here, who has worked on the structural design of some iconic stadiums and arenas.... Anything is possible, regarding connecting the upperdeck, or changing the line of sights and curvature of the upper bowl at the South End. It ultimatley comes down to cost. So when people write it's impossible they should be corrected as to its cost prohibitive.
Personally I would like to see a lower horsehoe bowl, with an upper concourse that allows for future expansion. Behind the new seating they could have a hall of fame, gathering space (think of the area at yankee stadium where the pep rally was held for ISU), training facilities, or administration. Upper should be a phased approach get the lower bowl built with structural capacity for expansion. Then build up the upper bowl and concourse at a later date. Potentially adding a club space/suites between the upper and lower bowl.
Personally I would like to see a lower horsehoe bowl, with an upper concourse that allows for future expansion. Behind the new seating they could have a hall of fame, gathering space (think of the area at yankee stadium where the pep rally was held for ISU), training facilities, or administration. Upper should be a phased approach get the lower bowl built with structural capacity for expansion. Then build up the upper bowl and concourse at a later date. Potentially adding a club space/suites between the upper and lower bowl.