Bamco Games has just released the first official trailer for CyberConnect2's Naruto Shippuden: Ultimate Ninja Storm 4 during Jump Festa. The trailer is more cinematic than gameplay footage-y, but considering that the game is known for gameplay that looks like anime scenes, it can be hard to tell. All you should know is that it focuses mainly on the fight between Hashirama and Madara, and judging by their looks and dialogue - it is set during their final duel when they were still alive.
You can check out the trailer after the cut:
The trailer certainly looks cool, and Hashirama and Madara both have access to more impressive looking attacks (something that they lacked in Ultimate Ninja Storm 3 Full Burst and only lightly addressed in Revolution,) but one thing that most gamers probably wonder is whether it's going to have enough changes and new content to justify a full price tag, as Revolution only had bug/performance fixes and added content that could have been (should have been?) added through a DLC or a patch. At the very least, it certainly isn't worth full price if you already had Storm 3 Full Burst.
With the manga already wrapped up nice and tidy, this can be taken at face value: that of Cyberconnect getting as much money out of the franchise before their license runs out or before fan interest dies down (the latter being unlikely considering how popular Naruto is, Dragonball games can attest to the staying power of popular anime/manga franchises.)
Naruto Shippuden: Ultimate Ninja Storm 4 is scheduled for a 2015 release on Xbox One, PlayStation 4, and Steam