Id Software has said that it?s busy preparing DOOM Eternal update 1 for all platforms, and has offered a preview of what?s to come.
Alongside the usual optimization and bug fixes, the patch will add new features including Empowered Demons that will invade single-player campaigns and reward players for taking them out. Official details are as follows:

PB = PB || {};
PB.gptStandAlone = PB.gptStandAlone || {};
PB.gptAutoRefresh = PB.gptAutoRefresh || {'gptAds':[], 'gptStandAlone':[]};
admiralCookie = readAdmiralCookie();

googletag.cmd.push(function() {
var standAloneSizeMapping = googletag.sizeMapping().addSize([0, 0], []).addSize([750, 0], [[300, 250]]).addSize([980, 0], [[300, 250]]).build(); PB.gptStandAlone['ros_300x250_p_slot4_1589055773'] = googletag.defineSlot('/4403/cr/playstationlifestyle/ros', [[300, 250]], 'ros_300x250_p_slot4_1589055773') .defineSizeMapping(standAloneSizeMapping) .addService(googletag.pubads())
.setTargeting('pos', 'P').setTargeting('content_detail', '0').setTargeting('kw', 'in-article').setTargeting('coppa', '0').setTargeting('site', 'playstationlifestyle');
googletag.enableServices();
googletag.display('ros_300x250_p_slot4_1589055773');

if (admiralCookie === null || admiralCookie['val'] === 'false') {
googletag.pubads().refresh([PB.gptStandAlone['ros_300x250_p_slot4_1589055773']]);
}

});

...