Hi,
According to amazon.com, Weezer Pinkerton Deluxe Edition will be released on October 5, 2010.
(If I am right, it was supposed to be released in august previously)
This will be a double CD album (like the Blue Album Deluxe Edition).
Tracklist for CD 2 is still unkown.
(this edition was announced time ago by Karl on internet)
http://www.amazon.com/Pinkerton-Deluxe-Weezer/dp/B002VACLDG/ref=sr_1_2?ie=UTF8&s=music&qid=1277301042&sr=8-2-spellI guess we will find Pinkerton B-sides on CD 2, and some lives.