The other nugget of information I got was that the ROM's exhibit display process is turning out to be more exacting and time consuming than anticipated. Deciding what goes in each display area, situating artifacts away from various damaging light sources, and arranging the whole so it tells the story they want to tell in the best possible way - that sort of thing.
The reason the ROM has such a huge collection, most of which isn't on display, isn't just to fulfill their research mandate as per the pickled dead things. Many of their holdings are fragile / light sensitive. If the have a month-long exhibition of textiles, for instance, they must have enough similar examples in storage to allow them to replace displayed items during the life of the exhibition if they are so light-sensitive they can only be brought out for a week at a time.