Confirmed to return in May
https://www.reddit.com/r/Warthunder/comments/1syv0wz/sound_mods_return_in_may_confirmed_by_official/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button
Devs are still working on it, but we plan to re-introduce them in May.
edit, nvm just read above