Marvel Collector Corps October 2017 Theme Spoilers! Posted by Hello Subscription on August 16, 2017. Subscription Box Spoilers / Marvel Collectors Corp Spoilers Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Marvel Collector Corps has announced the theme for the October 2017 Box! The theme will be THOR: RAGNAROK! Visit Marvel Collector Corps to subscribe or find out more!