A year or two before approval, they consulted with the community in part to hear what type of retail people wanted. No indication of what's to come.
No doubt a restaurant or two (maybe just in the adjacent hotel), but there's plenty of space for an LCBO, pharmacy (not super needed since CD Howe and Minto Place have one) or a small foot print hardware store.
With 20k retail, they could fit two fairly large stores with basic that are sorely lacking downtown.
EDIT - fare more retail space than I remembered. Over 50k square feet.
https://releveottawa.com/