It will be a common sense from them to give the people enough time to get to know the new guides, the new forms, new checklists ... and so on.
But there is also possibility that they could make the announcement in the last moment.
That mystery with that cut off date is getting really annoying .
The only thing we can tell for sure is that it will be this year.
I also think that there is relation between the cut off date and the elections... the elections are number one priority for them