I have found that there are still healthy pike in Wabamun, and that perhaps they are changing diet. I have caught more than 1 small walleye from shore in the weeds that had massive bite marks in their flanks, maybe some of the big girls have adapted to swallowing 12" walleye whole?
I also caught a 39 inch, 12+ pound slough shark from Wabamun in October, there is a thread in the forum with pictures for those curious.
They will be fewer and further between because of the eyes but with a lake the size of Wab there will always be a population of nice fish unless there is a full on kill from lack of oxygen.