Years. Soon after they closed it, they had a design proposal prepared that was actually pretty nice: high level platforms for the entire station, a place to be covered from the elements, accessibility improvements, better access for busses, etc. As far as I know, nothing has made it beyond the design process.

I cynically believe they're just waiting for the right blend of ice, wind, and rust to finally collapse the existing structure so they can get an excuse to haul it all away.