Bethesda has shown off the first gameplay video for Doom Eternal, the sequel to the 2016 reboot. The follow-up was originally announced during Bethesda's E3 2018 press conference with a cinematic trailer--albeit an exciting one. This trailer was shown once again during the QuakeCon keynote, before game director Marty Stratton and creative director Hugo Martin appeared on stage to discuss the sequel.
https://www.gamespot.com/articles/quakecon-2018-doom-eternals-first-gameplay-trailer/1100-6461082/