I’m not entirely sure, but I believe it’ll be available eventually. Recently, 2DSwirl changed how their files are accessed. Instead of using public links, they now require you to request access through Google Drive.
Unfortunately, there’s no way around this at the moment. While there hasn’t been an official explanation, I assume the change was made either to stop people from grabbing the files as soon as they’re released—or to help track down whoever’s been buying the content and uploading it to pirate sites.
For now, you’ll just have to wait—either for someone bold enough to take the risk and leak the content, or until 2DSwirl decides to release it to the public themselves.