The season also adds a new Elseworlds Mayhem map, Notorious Gear and Infamy Sets, "new" Brainiac boss fights and Premium Battle Pass.
Despite so many issues before launch, management allegedly told staff it would "eventually coalesce at the last minute."
It's been claimed in a new report that after the failure of Suicide Squad, the studio is looking to pitch a single-player game to parent company WB Games.
Leadership's vision of the gameplay also reportedly changed from melee to more gun-focused combat, confusing staff members.
Instead of a weekly cadence for its developer blog, Rocksteady will release them "when we have big news to share about future content."
Green Lantern-infused enemies, the new Promotinaut, a new Infamy Set and Notorious Gear, and a new mission type await players.
Disappointing sales performance, mixed reviews, and player counts in the hundreds paint a grim future for the looter shooter.
Warner Bros. Discovery CFO cites the "disappointing" performance of the looter shooter, especially following last year's Hogwarts Legacy.
The game itself may very well turn out to be cool, but WB Games' handling of the franchise has been shocking, to say the least.
All Infamy Sets and Notorious loot can also drop from Mastery Level 1 onwards. Higher levels will reward items with more Master grades.
With the game's first post-launch season having done little to revitalize its dwindling playerbase, the decision has apparently been made to end the game with its fifth season in 2025.
Kevin Conroy allegedly recorded dialogue for post-launch content prior to his passing, with the Caped Crusader set to be reintroduced in Season 4.
Season of the Joker offers little new story content, a recycled boss fight, and a repetitive grind to unlock its new playable character.
Though touted as "new activities" in the roadmap, these are the same Terraformer and Bug Farm missions from the base game.
Players must also grind the same missions to unlock The Joker, though there's also an option to pay $10 for instant access.
The battle pass will have 76 tiers in total, and will also bring new expressions, banners, and colour swatches.
The Finite Crisis Rank is heavily reduced for some endgame activities, leading to less grinding. Enemy snipers are also finally getting nerfed.
Players can expect new Mayhem and Assault missions, a Notorious set based on Scarecrow, a new weapon manufacturer and more.
The live service open world third-person shooter was recently branded a commercial disappointment by publisher WB Games.
Suicide Squad and Skull and Bones entered the monthly charts at No. 4 and No. 8 respectively, seeing disappointing sales.