I'm guessing because the amount of time he had to put more content, that Fujino would probably release a little earlier. I notice that Fujino usually tends to cramp a lot more if the months are shorter. In this case, if Fujino releases the update like Jan 30th, then February is probably going to get delayed into the first 1 - 5 days in March. But yeah I'm guessing that Fujino definitely likes to put as much as they can into an update, but also it usually tends to feel like a form of procrastination. Like Fujino probably didn't finish what they intended to do, so they ask for a few more days to cram it in. In this case, because of all the time they had, they probably feel decently satisfied with the content they made, and it wouldn't surprise me if they started making plans to release it in the 24th to 27th timeframe.
The other reason I'm guessing the 24th to 27th is because Fujino seems to like keeping to their schedule as much as possible, which in this case would mean releasing sometime close to what would normally be a progress report time, or during the weekend. In this case, the 24th to 26th is the last weekend of January, or the last time it's Saturday. Fujino doesn't mind releasing at the end of the month, but it feels like to me it's more about using up as much time as they can within a 1-month update.
Edit:
Also if we're considering the recent updates, a lot of those you could say were delayed updates because Fujino spent a lot of the first week fixing bugs. This means they had less time to develop in their normal monthly schedule. But yeah Fujino seems to dislike releasing content after the month is over. So I doubt it would make it to February 1st.
