As I am catching up on news from Anime Expo while also on vacation, I happened to notice this reddit thread about season 2 of Chained Soldier changing studios to Passione. I can't find any confirmation on a news site, but thought it was interesting. A common refrain from the discussion threads with @[email protected] in this community for season 1 was how lackluster the production was.
Passione has a history of ecchi series including titles such as "Interspecies Reviewers" and "Harem in the Labyrinth of Another World." Hopefully they can bring their expertise to bear in order to spice up the adaptation going forward.