The change in the design of SM CDO2 Premier project has been confirmed with the latest update which revealed construction now progressing to the 5th level.
Photo below taken a few days ago showed the western section of the mall (along Osmena side) which clearly indicates 5 levels as of date.
Meanwhile, on the eastern section, the columns are likewise rising 5 levels up.
The original rendering of the project showed a 4-storey mall. So perhaps, additional gross floor area with the added floor.