Toonami host TOM is like a man possessed. He seems to be telling us about something new ever week: anime moves in December, Space Dandy in January and now Blue Exorcist in March.
Blue Exorcist is supernatural series about twin brothers Rin (Bryce Papenbrook) and Yukio (Johnny Yong Bosch), who are raised by the church despite being the children of Satan. Rin is born with demonic powers that are sealed inside a sword until he unsheathes it to avenge the death of the priest who raised him. Rin decides to fight demons and enrolls in the True Cross Academy where his brother teaches, unbeknownst to him.
Blue Exorcist will presumably take the time slot of Sword Art Online, which will be ending in February.