Have to honest with you, after the release of FC 24 EA Sports is no longer going to add third kits for any secondary or lower league in the game. There are numerous clubs in EFL 2 that have third and even fourth kits that will never be added, until they get promoted to the Premier League. EA developers are even ignoring the many obscure clubs that once received third kits as recent as FIFA 23 or FC 24, for example AIK, Malmo, Independiente, and even Real Valladolid who had both a third and fourth kit, while still playing in La Liga Hypermotion (secondary league). The company has all the permissions and licensing to add third kits for at least eighteen or nineteen EFL Championship clubs, simply unwilling to spend the resources to do so.