Syfy cancels Defiance and Dominion

Syfy has decided to cancel Defiance after three seasons and Dominion after two seasons. Syfy, meanwhile, has a slate of high-profile dramas coming, including The Expanse and Childhood’s End — both of which are due in December — as well as fellow freshmen The Magicians and Hunters, both due in 2016. Its returning fare includes season two of 12 Monkeys as well…