How many places are there left that could make room?...there are a few mom and pop stores, but not many. The ones that are there (SC Place, Nina's come to mind) do too well to close. Here are the combination ideas I could think of:
The spaces where PoppyPia/Payless/empty space are next to Sears, put a store there between Pottery Barn and Sears, in the upscale corridor.
The space that hosts The Silver Link could be combined with the space Aeropostale temporarily occupies (former Borders Express). If Silver Link stayed, they could move to the unused portion of where Eddie Bauer was.
The space that has that Indian style apparel next to Sears downstairs, SC Place, and that empty space behind it (entrance corridor beside Apple) could combine, and could even absorb Bordwalk and Park Place.
That's all far fetched, but make the best combination scenerios I could think of.
As Seen On TV has moved back to their old location and some place that has parties or something for tween girls will take that space next to Dillard's.