Music of The Lost Master Arc

With the Lost Master Arc approaching, we've already been given a glimpse of several songs for the saga, providing a new set of compositions that could define the style of music for the next chapter of the Kingdom Hearts series.
This video displays a collection of certain tracks that could perhaps provide hints of what to expect in the score of Kingdom Hearts 4 and beyond.
Cutscenes thanks to KHVids!
Music Credits by Albums;
Kingdom Hearts - III, II.8, Unchained χ & Union χ [Cross] - Original Soundtrack;
-"VERUM REX" by Takeharu Ishimoto
-"Secrets of the Night" by Yoko Shimomura
-"Nachtflügel" by Yoko Shimomura and Sachiko Miyano, composed by Yoko Shimomura
-"Passing the Power" by Yoko Shimomura
-"The Foretellers" by Yoko Shimomura
-"Master of Masters" by Yoko Shimomura
Tracks Unavailable in Official Soundtracks (Extracted by KHWaterBlock);
-Secret Episode Intro Song: • Kingdom Hearts III Re ...
(Unknown composer)
-Quadratum - Data Greeting: • Kingdom Hearts III Re ...
(Composed by Yoko Shimomura, unknown arranger)
Thanks to UmbraMuninn for uploading Reality in the Dark from the Vinyl collection!
• "Reality in the Dark" ...
-"Reality in the Dark" composed by Yoko Shimomura