I think the author is trying to finish the game as soon as possible..
Sorry for the English, if suddenly there are mistakes.
If it will be so, then it will be a shame.
Since the author said that the game according to the plot is 50% ready.
There are two options here.
1. The author decided to finish the second part completely, there will be no third part, maybe another year or less. And finish, that's it. But it's unlikely, since the game already weighs 3.2 GB and the pictures are already 18 thousand. I doubt that he will cope, if not worse to do and send everything.
2. It is necessary to finish the second part and move on to the third, so the author sped up the event so that the update remains for 2-3 months and that's it, the end of the second part. In theory, as I said earlier, that in the finale there should be hot sex in FGO, where Asuna herself will want and break completely.
So I will hope that this is the second option, otherwise it's a pity when a good game is immediately in the trash.