This takes me back one year ago, when everyone was waiting for multirom. Those we all thought it would be released "in the early days of the year", i.e. january. It was finally released in late march. But there are two reasons, why it will be faster this time
1. Gateway was dealing with the bricking fiasko at the end of january and during february. This most likely slowed down the process, especially because they had to come up with a bricking code that is 100% safe for genuine users
2. The e-mails of gateway those were always claiming the release is soon. This time they actually setting themselves deadlines (which they don't hold, but it means they are close)
So whats the reason for the delay this time? If the claims in the leak thread explaining the new exploit are true, it might be a huge problem if the download of the rop-chain is incomplete (might result in bricked consoles). They are probably trying to find a way to make this process more secure. Also they might still be looking for a good server to host it.