Uhh didn't the WiiU drought effect happen because of titles being delayed in the 1st place?
Like Pikmin and Rayman Legends.
Wii U didn't have Battlefield or many of the other big third party titles at launch. All it had was more 2D Mario (Which is the same game on an NES or a Titan-PC) and inferior third party ports.
Now if Killzone was delayed...