The former, a story about a traumatized boy defending a city from alien incursions using a biomechanical humanoid mecha in the hopes he will be able to understand himself and earn approval from others, is an apt point of reference for Control Resonant's protagonist Dylan Faden. Dylan, the brother of Federal Bureau of Control's director Jesse Faden, is a powerful parautilitarian who has abilities by way of a connection to an otherworldly entity called Polaris.
A post from CharlieIntel reports that the DLC will be "expanding on already existing areas and reusing assets," while Polish insider UV o grach made some similar comments on a livestream, referring to reusing assets and filling in blanks on a map.