Tes96 (the person who's actively working on the mod) said there would be a new thread soon, so don't worry.
There was a teaser version offered for download, I think the previous thread contains the links. It's a huge download though, and you can't really play the mod yet, just stroll around and check one incredibly detailed interior. Nevertheless, I'd say that this interior is so well done that it justifies the download, just for having a look at it.
Also, Tes96 deserves far more feedback, so I tend to encourage people to download the mod. You should make a special Morrowind installation for it though, otherwise it might be difficult to remove all the content again.
That said, I think Tes96 mentioned something about planning to upload a new test version. But there has been a loss of one week's worth of work in the meantime, so this plan may have been postponed.