ultimatemegax posted in the Animesuki Forum that a Haruhi Blu-ray box will all episodes and both concerts and lots of bonus material is planned for October 22th. So far no information if subtitles are included but the price (39900 Yen) sounds ok for such a package, especially if it compared to the other KyoAni boxes like Clannad and Kanon^^;. The 2006 episodes should be an upscale but the 2009 episodes were produced in HD. There should be an official announcement on the Haruhi site in a couple of hours on 7/7 (because of Bamboo Leaf Rhapsody takes place on 7/7).

Update: Still now information at haruhi.tv, but an Amazon-Link.

Update²: haruhi.tv lists English subtitles.

Update³: ultimatemegax posted more information about the contents a while ago:

The set will be on 8 double-layered discs and comprise the whole series and both concerts. The talk portion of Gekisou will not be included. Other special features are the TV and promotional spots, store promotional videos, and location scouting footage. Run time is listed at 650 minutes for the main footage and 430 minutes of bonus footage for a total of 1080 minutes on the set.

Edit: Here is the disc layout:
Discs 1-5: TV series, Disc 6: Bonus footage, Disc 7: Gekisou Live concert, Disc 8: Gensou Concert

It looks like some new “Taniguchi goes” segements will also be included in the set, because they are called “Taniguchi goes! A new Journey of Mysterious Discoveries” on the BDs.