Further reading the HTF article and came across this tidbit:

Once the picture restoration was completed, the team at Universal Studios Sound prepared to up-mix Jaws to a 7.1 mix from the 5.1 mix that had been created in 2000 using the original mono soundtrack. Now on the forthcoming Blu-ray, fans can enjoy JAWS in DTS-HD Master Audio 7.1, optimizing the sound for the latest home theater technology.

GRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR!!!!!!!!!!!!!

http://www.hometheaterforum.com/t/319941/ushe-press-release-jaws-blu-ray-plus-restoration-details