It would seem a new walkway (going East to West/West to East) already has one part done with the new ramp on the East side of Bramlage. They could duplicate the same thing on the West Side, the problem then becomes what to do in the middle where the Legends room is located. If they were able to open up the entire South concourse of the stadium to Bramlage that would open up a lot of space and ease congestion.
IMO they should just plan on expanding on the West Side of Bramlage and put a new Legends Room in over there, and then remove the old one and use that for the walk way. They need to leave enough room to allow for additional seating of the stadium though. If they get too crazy they're going to leave themselves little room to expand seating in the football stadium.
The real pickle is going to be the North End . . . Frankly the move to redo the entire thing needs to be done sooner rather than later. Possibly LHC LHC Bill Snyder the sole reason that the North End/Vanier is the way it is today can write a letter to all those that donated to all the previous rambling and disjointed expansions of Vanier. In that letter he can apologize for his stubbornness, short shortsightedness and inflexibility. He then could go on to explain that out of the rambling pile of the Vanier Complex a fantastic new facility will rise like a Phoenix. A facility incorporated with a fully meshed cohesive completion of lower seating bowl, with a middle segment "cut out" of the upper half of the middle sections of the bowl. Exposing a fantastic view of the entire football stadium from the coaches offices, with a recruiting center and balcony over looking the stadium on the next level . . . and state of the art dressing room/weightroom/meeting rooms/medicine underneath below the seating bowl with a tunnel. The visiting dressing room then gets moved and cut out of the hill on the Northeast side and they exit and enter through the tunnel used by vehicles to get into the stadium.
Then up top of the new North Seating Bowl they build "Gameday Portico or Overlook . . . a fantastic limestone walled structure with a perfect View into the Stadium allowing the ESPN Gameday to have a "permanent" home at K-State whenever they visit (which will be often), with the West Stadium Center in perfect view on some panelist shots, and then the gathered masses with signs seen in other shots. Herbie could wave to the crowd like the Pope . . . they then could take in the EMAW victories right from there while being served EMAW's finest meats and cheeses.