We are planning on bringing the power of Unreal Engine Audio to Unreal Editor for Fortnite, which includes supporting MetaSounds. At the moment, we have been focused on other high priority audio use cases such as adding spatial audio support in sequencer Audio tracks, and continuing to add features to the new Audio Player Device we introduced. The MetaSounds Editor in Unreal Engine is fairly full featured and we continue iterate on it and make performance optimizations. Initial support for MetaSounds in UEFN will likely start with allowing users to use read-only MetaSounds already authored and ready to plug into UEFN experiences. We don’t have a timeline on when this will be done.