If you were hoping to topple Colossuses in stunning HD graphics this spring, you are going to have to put those plans on the back burner for a little while.

Sony confirmed on The PlayStation Blog that both  the ICO/Shadow of the Colossus Collection and The Last Guardian have been pushed back from their Spring and Holiday 2011 release windows to an unspecified date.

"I announced at last year's Tokyo Game Show that the release timing of The Last Guardian which is currently being developed would be holiday 2011." said Fumito Ueda, Director and Game Designer on The Last Guardian.  "However, to provide more challenging and better quality of content to users and to fulfill First Party Studio's obligations, I decided to postpone its release timing."