Bitfinex press release:
Bitfinex will work with the DOJ and follow appropriate legal processes to establish our rights to a return of the stolen bitcoin.
If Bitfinex receives a recovery of the stolen bitcoin, as described in the UNUS SED LEO token white paper, Bitfinex will, within 18 months of the date it receives that recovery use an amount equal to 80% of the recovered net funds to repurchase and burn outstanding UNUS SED LEO tokens.
U.S. Department of Justice Announcement Regarding Seizure of Bitcoin Linked to the August 2016 Security Breach https://www.bitfinex.com/posts/766