Here is some data from the past before the transition. These numbers include total pilots on property including management. 6.5 pilots per plane was the norm before the transition started.

Year Total Pilots/Planes
2007 197/29 = 6.8
2008 269/37 = 7.2
2009 309/47 = 6.6
2010 323 51 = 6.3
2011 344/53 = 6.5
2012 355/62 = 5.7
2014 415/67 = 6.2

Utilization has and will continue to increase significantly, therefore a number closer to 10-10.5 will be needed by spring break. There are still over 80 pilots somewhere in the training pipeline so if you do the math that is pretty close to the number of excess (currently sitting at 11.6 today). I don't think it will take too long to grow into the extra 10% and need to hire again but it's all contingent upon finding more airframes in a competitive market.