Overview
- The datamine published May 24 by XOXLEAK/X0X_LEAK surfaced in‑game file entries that list numerous 'Ally Goons' tied to Joker and Harley and many alternate Joker and Harley costumes.
- Reported character names include Task Force X figures such as Deadshot, Captain Boomerang, King Shark, Killer Croc, Bronze Tiger, Deathstroke, Katana, Rick Flag and others that outlets say would join as villain allies.
- Nintendo Everything has reported a named Mayhem Collection DLC slated later this year that it says will include a Joker/Harley story mission, a Mayhem Mode and a villain Sinister Pack, with the package reportedly granted to Deluxe Edition buyers.
- TT Games and publisher Warner Bros. Games have not confirmed the leaked items and multiple outlets caution that file entries can reflect work‑in‑progress, recent updates, or scrapped assets rather than guaranteed releases.
- The leaks arrive as LEGO Batman launched to strong sales and Steam performance, a development that raises player expectations for post‑launch content and could shape the game's paid and free update plans going forward.