It came out earlier this week that St-Pierre was planning an announcement at a press conference Friday morning for a PR event. Apparently those plans have changed.
In an interview with Ariel Helwani following the UFC on Fox 9 pre-fight press conference, UFC president Dana White said he was planning on speaking with GSP Thursday at 7p ET. Just under an hour and a half later the UFC's Sr. Director of Public Relations sent out this tweet:
Dave Sholler @Sholler_UFC
Via press release just distributed: special media conference call tomorrow at 2:20pm ET with Dana White and GSP.
5:17 PM - 12 Dec 2013