CHCA has a good summary of what is known so far, please go to http://clairmontheights.org/node/2115
MANA inquiries to Commissioner Rader resulted in a pretty much identical email as noted above.
Druid Hills Patch has a rehash of CHCA's post and adds that coy surveyors from Wolverton and Associates have been spotted at Suburban Plaza. A quick visit to W & A's website shows that they provide the following types of site survey services: site feasibility studies, preliminary planning/ value engineering, public information meetings, zoning and land use requirements, complete site and hydrology designs, project cost estimates & specifications, securing permits & assisting with bidding process, as well as transportation, traffic, structural and subsurface utility engineering surveys.