According to the Samyang Facebook page, the Korean manufacturer is poised to debut five different lenses over the next five weeks.
From the Samyang Facebook page:
"In this Summer, the five Samyang Blockbuster series will blow your mind away!We have no idea how many of these lenses will be designed for DSLRs or for mirrorless cameras, but we're certainly curious to find out.5 NEW Samyang Lenses will be released on every Monday for the next five weeks."
B&H carries Samyang Lenses.