The development team have released a new blog post outlining the improvements that have been made for PPS in SharePoint 2013 and is asking for feedback on what other priorities they should focus on.
Read more at http://blogs.msdn.com/b/performancepoint/archive/2012/08/03/what-s-new-in-performancepoint-services-2013.aspx

What improvements would you like to see for PerformancePoint Services in Office 2013?