Jimbo is right ...but with an explanation!
Campsites are generally on the small side, they are not plentiful, that is to say the shorelines are not that well developed with sites. Our approach is this: its not so bad that the current use is low (650 paddlers), our guests love the solitude, we are identifying and confirming all campsite locations and we will continually update our map and provide it to you as a planning tool.  
We are also identifying potential sites as we beleieve we will have to create some new sites to deal with the increasing use over the coming years.  When we have completed out projects some sites that you may have used in the past won't be on the map. That is because that site, for a specific reason had another value that was placed higher, eg. burial site, ceremonial site, significant archaeological site, high caribou value or sensitive natural (eg. plant) value.
Some of these small sites will continue to get larger, but we would rather that happen gently over time than carving them out now when the use doesn't demand it.
We would like to see the park increase its use but only to a point. Right now that is one of its most valuable features. We don't want to lose that.  Tell me if my use numbers are off; BWCA - > 100,000, Quetico 20,000, WCPP < 700. That alone should attract some people that are feeling claustrophobic in other spots.