Being in charge of directing two massive AAA titles is not something most people would be comfortable with. In fact, most creative directors and game directors would shutter at the thought of such a thing, but Tetsuya Nomura welcomes such as a challenge, calling it a "good thing".
It actually works to my advantage because [they're] so different. If both titles seem to have a sort of similar vein, both titles may start to look the same. So with the two being different, if there's one thing that I could not do in one title, I might be able to do it in the other. It works out for me in that way.
There is one thing that did get kind of hectic in regards to directing both games, and it's that scheduling events and meetings around both Kingdom Hearts III and Final Fantasy VII: Remake are quite difficult.
He explained that it was tough trying to schedule in a meeting regarding milestones for Final Fantasy VII: Remake and also setup a demo trailer to display at this year's D23 Expo. However, despite all the busywork keeping Nomura's head deep down in the development process, he still enjoys working on both titles.
However, everything else kind of changes from there, as both games couldn't be more different when it comes to themes, aesthetics and characters. Kingdom Hearts maintains a very lighthearted look and takes players on a lot of whimsical adventures throughout the many different worlds of popular Disney franchises and Square Enix universes. Final Fantasy VII, however, is extremely dark and takes place in a dieselpunk dystopia of sorts.
Even though both games are running on the Unreal Engine 4, Nomura also explained that the team took extra time out to rework some of the engine's special effects and particle generation features to make sure that Kingdom Hearts III in particular stood out from every other UE4 game and tech demo.
Some people are a bit worried about this, given that even with both games running on the Unreal Engine 4 and with Nomura having an excellent pedigree of design efficiency under his belt, directing two high-quality AAA titles simultaneously is still unprecedented, and it could either make for two fantastic games or two train wrecks. We'll find out when both games finally release for the Xbox One and PS4. Kingdom Hearts III is due for release first in 2018.