Takeharu Ishimoto, the compose of the original The World Ends With You confirmed on his Twiter account that he will be returning to work on the saga.
He previously worked on the Final Fantasy and Kingdom Hearts soundtracks, as well as on many other video game soundtracks.
You can watch the new announcement trailer for NEO: The World Ends With You here if you missed it.
NEO: The World Ends With You is expected to release in summer 2021 for Nintendo Switch and PlayStation 4.