Sony Europe has confirmed that the 1.5 patch for Warhawk will be released on August 27th.
This patch will bring in Trophy Support for the game, and it will be divided into four sections. Some will encourage community-based activities, whilst others will reward you for feats in particular game modes or vehicles. They will also be retroactive.
is reporting that the original news item detailing all this has been pulled from Playstation.com. Sony have yet to comment.