Being the Tespia freak I am, I have been checking the Tespia website almost daily since it was closed back in August (the account which was chosen is still able to enter the website and is still labeled as an account which is able to enter Tespia).
Nothing had changed until.. today.
Yes, because today, there was a change in the news box.
First, one of the three lines there was removed. Then..
.. this. As you can see, it says "Tespia is nowopen!" (loltypo), and it has the date of today, November 12th.
We can safely say nothing else has changed other than the line in the news, yeah.
Considering it was added today, they might be testing some things out to open Big Bang Tespia soon. Maybe even sooner than we expected.
Hopefully this is the case.
I'll keep you updated.