There is an update in the Club Penguin Improvement Project, it seems like there is going to be server testing going on:

http://www.clubpenguin.com/cpip/flash/CPIP_02.swf

If you click more info you will be sent to this site:

http://www.clubpenguin.com/cpip/server_test_info.html

So it looks like Club Penguin is going to have server testing again, I wonder if this means it will be the return of the black and pink toques.