Only until 3/31/2013. And I think the 25 days only really applies to batch filers. See Q&A below.
http://bsaefiling.fincen.treas.gov/FAQs.html#categ_06_quest_03Must CTRs (Currency Transaction Reports) be filed within 15 days after the transaction date?
Yes. FinCEN announced a change in the CTR electronic filing specification for the CTR from the current 25-days to 15-days. FinCEN regulations have consistently maintained a regulatory requirement that CTRs be filed within 15 days. Notwithstanding this requirement, in connection with its receipt of magnetic media files initiated in late 1987, and ending in December 2008, FinCEN issued electronic specifications referencing a 25-day period to assist institutions seeking to take advantage of this filing method via a common business practice of submitting magnetic media files on a fixed schedule. The 25-day period was implemented to account for physically transporting (shipping) the magnetic media to the processing center in Detroit, Michigan. FinCEN understands that this business practice has continued
with respect to batch e-filing. In light of the comments received and acknowledging that some financial institutions may need to change their business processes to become compliant with the rules, FinCEN has determined that
it will temporarily maintain the 25-day compliance period referenced in its earlier specifications until March 31, 2013, for those filers that need to update their systems in order to be in compliance with the established regulatory requirements. The FinCEN CTR filing specifications may be viewed at
http://bsaefiling.fincen.treas.gov/news/ FinCENCTRElectronicFilingRequirements.pdf.