The IRS sent emails to two tax professionals regarding Form 8300 and cryptocurrency:
Treasury has postponed the effective day of 12/31/2023 for filing 8300 forms regarding digital asset transactions (Cryptocurrency). The updated [form] as well as guidance on electronic filing the 8300 form will be on the IRS.gov website soon.
Both FinCEN and the IRS are within the Department of the Treasury. I’ll post a further update when it’s available.