No concrete info on the retail occupants, however the agent has said more than once that, once they start closing on the residential (June 1), that info would become more apparent. My guess is that they are going to complete the building construction (still doing the interiors of halls, etc. Each unit is being finished as it sells: selection of floor style, wall colors, etc), then the retail will show up soon after that.
If I were a retail company, I wouldn't want to be contractually (publically) obligated to open a store in a non-finished building. Then again, what do I know?