I was hoping to find a more detailed rendering but there don't seem to be any that are publicly available. I can still only find materials from 2008 on the HRM website. There are more details though that might not have been posted here yet.
I thought this elevation from the Benjamin Wier House addition was pretty interesting. This mix of old and new is sort of the best case I can imagine for Halifax. The heritage buildings here are real gems (rare on even a national scale; Canada is not exactly overflowing with mid-19th century Italianate mansions) and the additions will add enough density to the area to make it vibrant.
The north and west elevations from the Alexander planning document are worth posting too, although it's not clear how close they'll be to the final result: