I'll repeat what I said before, that the new latest timetable for announcement would be after the release of Pokemon Sun/Moon, launching November 18, 2016. Now it would be disadvantageous to announce a new console during your holiday console sale surge, especially if the new console is a hybrid handheld, where the 3DS will likely see a spike in sales this holiday due to Pokemon. This puts the expected reveal after Christmas and New Years, so a console reveal may not happen until Mid to Late January.
Alternatively, at this point, a console delay is probably unavoidable and may end up pushing this whole thing to E3 of next year, where the console won't launch until holiday of 2017.
But absolute worst case scenarios notwithstanding, I would guess February as the latest reveal date at this point in time, with an announcement of the reveal in mid to late January.
I think everyone is going to have to chill until a new leak happens, because we will theoretically be waiting a while.