CONCACAF ExCo to decide 2014 World Cup format

According to Andrés Cantor, CONCACAF's Executive Committee will meet in Panama to finalize the format for 2014 World Cup Qualifying. I had thought that it was a done deal (they had voted to switch formats in May), so I'm not sure if they are working out the particulars of the new format or still debating whether to maintain the Hexagonal final round.