Just a small update with tidbits mainly sourced from Twitter. I've updated the relevant pages :
General Season 3 Spoilers
S3 Unknown

Happy reading!!
Both the DVD and Blu-Ray Season 2 boxsets (Region 4) have the following features listed -
Special Features:
* Anatomy of an Episode – “Next Tuesday”
* Bollywood Dance
* Amanda Tapping directing
* Bloopers reel
* Sanctuary for Kids
* Visual effects
* Will Vision: On set, in Japan, Major League Baseball, Comic Con

Source : EzyDVD website (Australia)
Syfy in the USA is moving their traditional scripted original shows from Friday nights to Tuesday nights, so come October Sanctuary will be on Tuesdays!  Why are they being moved? Friday Night Smackdown has been acquired by Syfy and that will air on Friday instead.

In my opinion it remains to be seen whether the niche "SciFriday" programmes will survive on Tuesdays. Whilst Syfy does tout the success of Warehouse 13 and Eureka on that night, those shows aired in the less contested summer period.

Source : Futon Critic - Syfy Press Release

Release Dates for Region 4 DVDs

Australia and other countries in the Region 4 area will be getting several new releases on 9-Jun-10 -
Sanctuary - Season 1 (4 Disc Set) (Blu-ray)
Sanctuary - Season 1: Special Edition (5 Disc Set)
Sanctuary - Season 2 (4 Disc Set)
Sanctuary - Season 2 (4 Disc Set) (Blu-ray)

Source : EzyDVD website