So realistically, as far as KFOG goes, Nelson Mandela could not have died at a worse possible time: The Thursday before CFK, but after that day's 10@10 was set and apparently after that day's KFOG Connected was set as well.
And then it's the weekend, so unless Renee can do a dedicated set 4 days late - and explain the delay - nothing really special for Nelson Mandela is going to happen.
Google, btw, is going all out, but which you might not haven noticed at first glance. Instead of a google-doodle, they've simply listed a memorium below the search bar (WHICH THEY NEVER DO, NOT EVER) and it links to a huge pile of Mandela stuff which seems to be very well done.
Mind you I am not dissing the well established & meaningful charity that CFK has become. But I might have found a way to do 5 songs for each if I were PM. There is precedent for that.