As part of the ongoing study for the Eisenhower widening, IDOT is now looking at how to
reconfigure the interchanges. The infamous left-exits at Austin and Harlem could be reconfigured into right-exits, while still flowing into a single intersection suspended over the highway median (this is unique as far as I know). IDOT is also looking at the SPUI design for these exits.
It looks like there's also a potential to create some small plazas around the CTA entrances, and bus lanes for dedicated queuing. This could be a substantial upgrade to the access at these stations.
Meanwhile, Oak Parkers are protesting the highway expansion and the city is examining the possibilities of liner buildings, especially at Oak Park Ave.
Between IDOT and Oak Park, I think the future is looking bright for these stations which are currently very unpleasant.