If i remember correctly, something similar happened to the SC website before SCV's announcement. I don't remember if it was removed or redirected like this case, but it was under maintenance for a long while. And after maintenance was over, SCV was already announced and i remember they were doing these:
You had to vote to reveal the full artwork. Although they only did this for Mitsu & Pyrrha.
Also, the 20th anniversary soul calibur site is still online, as well soul archive.com .
I think they deleted soulcalibur.com because it is not relevant anymore, they have to go to the next generation of player etc ..