Looks like Amazon will be importing it and making it available.
The box set from the Amazon JP page: https://www.amazon.com/Chrono-Orchestral-Arrangement-Box-Limited/dp/B07T2H6SXD/
What appears to be just the soundtrack, without whatever else is meant to be in the "box" edition: https://www.amazon.com/Trigger-Orchestral-Arrangement-Original-Soundtrack/dp/B07T2H6SXF/
Releases 13 Sept.