The ring on the Dragon Slayer attaches to a hook behind the right shoulder. The chain/strap loops over the sword from the left shoulder, under the sword between the sword and the back, and attached up to the same hook the sword ring is attached. This gives it the lean.
No release data or preorder start date given, so far.
There are likely a few Game of Thrones figures they still want to get out while the series is in the spotlight before going back to release some of the other items they have in development.
I would hope they post preorders before any of the...