We'll be doing a final test of 1.05 on Wednesday. Probably all 3 versions, and we will probably will make it a semi-public test (links will only be posted here on the forums, not announced to the rest of the world).
After our first test which was run a couple weeks ago, we've added a bit more content to extend the amount of gameplay the add-on provides. It's still not as long as I had originally hoped, but it will give most players 3-5 hours of new area to adventure in and it is certainly challenging to those of you who do not cheat.
If there are no major problems found, we'll put it up for the rest of the world to download by Friday.