Most likley your new boss is building his own team and will let

Most likley your new boss is building his own team and will let you go soon.
I had the same situation after new boss came. He asked me training his new hires and then let me go without any warning after the new guy knew how to work on my stuff. New boss usually wants his own team with people he hired. Lesson is learned. Please work hard on job hunting. Good luck!