Hi,
The schedule of election for the Chapters Association Council Chair has been announced at http://meta.wikimedia.org/wiki/Wikimedia_Chapters_Association/Elections/2013_Chair
The schedule is: Nominations open midnight (UTC) on Monday 25 February 2013. Nominations close midnight on Monday 4 March 2013 and voting is opened. Voting closes midnight Monday 11 March 2013.
Note that all 21 Council members will be eligible to vote, including those that stand for election. In a heavily contested election, expecting nominated candidates to refrain from voting would not be workable.
Thanks, Fae