Got off the phone with HR recruiter. I was told hiring between September 4th, 2014 through November 2015. Initially they had a hiring goal of around 380, now the goal is 440. Recruiter said she wasn't sure of the reason for additional pilots, but speculated at updated forecast for attrition and or options for more American E175s.
110 should start class by the end of the year. 16 in September, 24 in October, 40 in November, 30 in December. Classes of 10 a week starting in November. The first class of December starts the 18th. I assume scheduled later for spacing into sim training because the CBT time goes from 30-days to 14-days. New hires should expect MSP for sim, STL is planned for upgrades.