Doom Eternal Soundtrack release date has been pushed back to a later date as it has not been completed yet by Bethesda.
"The standalone DOOM Eternal Official Game Soundtrack, which forms part of the DOOM Eternal Collector’s Edition, will not be available on March 20, 2020 as originally intended," Bethesda wrote in an update on Doom Eternal's official game soundtrack.
The CE comes with a cassette tape which includes download codes for the full lossless digital copies of the DOOM (2016) soundtrack and DOOM Eternal soundtrack. The DOOM Eternal original game soundtrack will be available at a later date.
— Bethesda (@bethesda) March 11, 2020
Doom Eternal Soundtrack: Release Date
The music for the game itself will not be affected, but the physical copies of the soundtrack was announced to come out shortly after the game's release date.
With DOM Eternal having been released on the March 20, and with the soundtrack still not out, the release date will likely come before the end of April.
In the meantime, enjoy the wearable Doomslayer helmet, a lore book, a lithograph, Steelbook case, and the Year One Pass all in the Collector's Edition.
