Great thread topic, E hemingway! I love all the ideas, no matter how unreasonable. Anything is better than what we have now. Here is one of my unrealistic redevelopment plans:

A gated, resort-type, retirement community complete with a golf course. This would appeal to older folks who may be more interested in the classic architecture than the younger folks. The gated security would provide a safe environment for golfing, walking, bike riding, etc. The tower would be turned into apartments/condos. The main lobby would be turned into a large banquet hall that could be rented out. It would still be open to the public, but on a restricted basis.

And if the need ever arose for a train station, this could be accommodated. The retirement themed facility could be converted into a visitor themed facility. Apartment/condos could be converted into extended stay suites. The golf course and other recreation facilities in a secure environment would provide an attractive place to stay for out of towners.