As a keeping up with PEACHTREE MALL measure, COLUMBUS SQUARE was renovated and expanded in 1974-'75. Columbus-based Kirven's opened a branch location.
Graphic from

A vintage view of a mallway entrance of the Kirven's department store.
Photo from "Columbus Square Mall" / Markeon Davis‎

Above, we have a provisional 1975 plan, showing the possible layout of the new -Kirven's-anchored- East Wing. This drawing was done with some degree of guesswork, as there are no floor plans of this mall available over the internet. We do know for certain that a new twinplex cinema was in the location indicated on this layout.