Little late though, but before the years end would like to share that Dec 2013 CU for Project Server 2013/2010 is available.
You can find the details of Project Server 2013/2010 installation package here: http://blogs.technet.com/b/projectsupport/archive/2013/12/12/microsoft-project-server-2010-and-2013-december-cu-announcement.aspx
Note, as usual, that this should be applied to test environment first prior to production. Also Mar 2013 CU is been set as baseline for all Project Sever 2013 CUs, so install Mar 2013 CU first.
Dec CU includes fix to one of the commonly encountered issue:
Assume that you change values for fields such as...