Just a special chapter? That's disappointing. I was so excited when I saw it up there. I just found out the first tankoubon is going to be released in December, so I understand they're doing that to give it more publicity.
Maybe if this chapter and the tankoubon do well, they'll consider moving the series to SQ for good. I certainly hope so, although I seem to be the only one
This manga won't get anywhere with such a slow publication schedule.