While Claridge Plaza have yet to announce pre-construction sales, they have purchased the National Bank of Canada building on the corner of Rideau and Cumberland streets with a view to building Claridge Plaza Phase III and IV:
No word yet as to the timeline for these next two buildings, but with Phase II nearing the halfway mark and architectural renderings of III and IV on display at the sales office, I would expect to hear something concrete (no pun intended) by the end of the year.