Series director Tetsuya Nomura wants to make Final Fantasy 15 more dynamic. That includes an increased focus on quick action, and an attempt to keep the player in control at all times--even during the cutscenes.
"We wanted to create like an action-based FF this time because we wanted to create a dynamic feeling between the story and the game itself," Nomura told Final Fantasy News (via Nova Crystallis). "Of course, we are going to put many FF elements into it, because otherwise there is no point calling Final Fantasy XV. Naturally, we still think we should have some old school FF feeling to the game."
Part of that dynamism includes retaining a goal that he had made two years ago, in regards to Final Fantasy Versus 13. Nomura told Japanese magazine Famitsu (via Siliconera) in 2011 that you'd still be in control of your characters during cutscenes. He hasn't forgotten that commitment, and it's made the jump to Final Fantasy 15--though he's hedging his bets.
"I would like to achieve that as much as I can," he said. "Our goal is to ensure that the player never actually stops playing. This is the reason behind it and it will be great if we can achieve that."