Stuff I picked out during that video (just a cursory look as I'm still at work!):

- Weapons in the 'Phantom Sword' menu. On the main screen you can see what I presume is each weapons name, and below that something else. For example: テンペスト. <- "Tempest".
- These second fields show up in the 'Ability' menu on the left of the screen during combat, and it seems Noctis can use it at any time. Looks like the Ability shows you the MP cost of the currently selected ability and your current MP.
- COVER SYSTEM. lmao
- Blue bar is definitely MP
- Two different types of menu: battle menu and travel menu
- Cooking and camping looks more in depth than I expected. That's nice to see.
- Orange markers next to names looks to be status markers. I'm guessing this is showing you your buffs and power state. For example after camping, there's more stuff and more 'up' arrows, so I guess the party's condition deteriorated over time and then after a snooze and a healthy snack they were back up to full power!