The CALALPA website has a virtual senority visualizer that is normally updated every TUE. Apparently CAL has now finished filling classes through the first week of DEC. Class 11/01 has 16, class 11/08 has 17, class 11/14 has 16, no class for 11/21 or 11/22, class 11/29 has 16, and class 12/06 has 13. ALLnewhires since 09/13 have gone to EWR 737 or EWR 757. There should be a new system bid out the JAN-FEB time frame.
Using NOV as a guide, having a holiday like DEC, I am guessing three. Knowing CAL, they could have two or four or stop hiring until the end of the year. With CAL management, your guess is as good as anyone's.