Apologies. The injunction ended up passing such that the tooling was not in fact revoked by Apple.
Epic relies heavily on deploying Fortnite in order to test the Unreal Engine at scale. Fortnite itself is, in some sense, the test bed from which many improvements and fixes are carried back to the mainline engine. Any studio or publisher relying on the Unreal Engine to deploy to iOS or MacOS would be more or less immediately effected, especially given the volatility of Apple's APIs.
Epic relies heavily on deploying Fortnite in order to test the Unreal Engine at scale. Fortnite itself is, in some sense, the test bed from which many improvements and fixes are carried back to the mainline engine. Any studio or publisher relying on the Unreal Engine to deploy to iOS or MacOS would be more or less immediately effected, especially given the volatility of Apple's APIs.