Yes I do realize that. But they also had a gameplay trailer of the game months before that of a build that was canned and they restarted development pretty much completely. The gaming industry in general has proven that episodic releases which were once big are quite often a disaster and there is only one series I can think of that still pulls it off (A Square Enix series, but they also had bad luck with Hitman so). I just do not see them sticking with an episodic release system.
If Square Enix was smart about how they ran their company, they would have fired Tetsuya Nomura by now and completely restructured their shitty ass localization department. (The voice acting in FFXII, XIII Trilogy and FFXV is god awful compared to AAA North American games)
I'm certain that SE will stick to an episodic release.