It seems Final Fantasy XV is going to become more casual than we think.
One thing we definitely know is that the game is trying to appeal to casual audience maybe more than we think. According to recent interview which appeared on gaming website, Siliconera, director of the project Hajime Tabata has shed some light on the game’s cover system. In the video I discuss the potential evidence which may reveal that Final Fantasy XV will include a health recovery system similar to what we see in games such as Uncharted or Gears of War.
Keep in mind that it's still a rumor but something to consider especially since items or recovery magic were shown in any of the trailers.