Yes, The James Dean Collection Region 3 boxset has been confirmed. Here's a snippet from the press release:
On May 31, Warner Home Video will celebrate the iconic film star James Dean with the release for the first time ever of his complete motion picture legacy. A DVD Box Set will include East of Eden (available for the first time on DVD), Rebel Without a Cause (new two-disc Special Edition) and Giant (two-disc DVD Special Edition).
The DVDs are filled with special features, including new documentaries, commentaries, deleted scenes, Behind the Scenes segments, screen tests and more.
Details on the PinoyDVD front page next week.