Consolidation of hospital services in Scarborough is likely - all three sites are now under a single board. It's likely that the three hospitals (General, Centenary, Grace) will become two. To some degree, it makes sense, but in areas outside Toronto, the new larger hospital sites are very autocentric, as they're built in greenfield locations.
Two sites in St. Catharines
were merged into a new greenfield location several years ago, and a similar plan
will consolidate hospitals in Niagara Falls, Welland, and Port Colborne to a single new greenfield hospital site near the QEW, with a new ambulatory care centre in Welland. A similar consolidation - with a remote greenfield site - is planned for Windsor.
At least in central Toronto, the plan has always been for intensification of existing hospital campuses.