coles mega plan

Westfield have not commented on Coles plans to build "mega stores". Coles are a major tenant in Westfield centres so if they are to go in a new direction then where does this leave WDC. That size of store does not fit into the current design of shopping centres. The "Pick N Pay" style of mega store is a stand alone style of shop not part of a large "Westfield" style centre. Are Coles going to close some of their current stores in order to open the new stores or are they to be in addition to their current stores?
This could have an impact on WDC's Aussie operation.