NetherRealm Studios are releasing the Legendary Edition for Injustice 2, which is what other games call GOTY edition. It will contain all the DLC previously released for the game and players who own Injustice 2 can upgrade to GOTY edition.
Injustice 2 had a fairly large fighter pool from the get go, which kept getting expanded through DLC characters since its release in May 2017. They are all now available in a single package called Legendary Edition, which is available on Steam Store. Players who already own the base game will have an opportunity to just upgrade to Legendary Edition.
While the ability to upgrade is good for the players, some have reported issues with it. The game's veterans who have farmed to get better gear stats received a kick in the shins with this update, as a lot of the gear stats have been reduced in order to shorten the power gap between them and the newcomers. Other players are reporting frequent crashes but this is likely to be fixed soon, as crashes are sadly a regular occurrence after updates these days.
Injustice 2's DLC characters do not come only from the DC Universe, as there are fighters such as Hellboy, Teenage Mutant Ninja Turtles and characters from NetherRealm's previous work - Mortal Kombat. Therefore, Legendary Edition is one massive crossover with colourful character roster.
In NetherRealm's tradition, Injustice 2 features a well written storyline for the single player campaign which is somewhat uncharacteristic for fighting video games. The game has nearly three hours worth of cutscenes, which can be put together to form a movie that many fans consider to be vastly superior to any of the DCEU cinematic outings.
Unlike the first Injustice, this one has a gear system, which gives players a better sense of character progression and more incentive to play the online multiplayer actively. Some players have also been hoping for more Fighter Packs but the Legendary Edition seems to put the last nail in that theory's coffin.