I believe that Pierre Chang himself is behind the new Dharma Initiative and he was trying to recruit his son, Miles. When Bram and his fellow kidnappers grabbed Miles and threw him into a BLUE VAN, they never threatened him or roughed him up. They promised to let him find out about his father and his powers. How would they know about his father? There was never any definitive proof that Chang was killed during the purge. I believe that he has been hiding and waiting for this time to go back and re-claim the island for the newly reformed DI. Just like the video shown at Comic-Con last summer suggested.