Pfft, we all know the real reason the last two episodes haven't been released: Shinbo and co. got a little too high while planning the storyboards for the freakish witch scenes and accidentally lost/destroyed the rest of work they'd done for it...on top of already being a week+ behind. In the process of remaking everything, they probably decided to redo the entire series, because they realized how much quality animation had slipped through. So we can expect it in about a year. Maybe.

(Though, honestly, I wouldn't be surprised if they don't redo a lot of the series, and not just the last three or four episodes. And not just because of the derpy "being meguca is suffering" nonsense. That will add a LOT more delay, if I understand anything about how SHAFT works.)