Long after Inarius and Lilith have Diablo 4 Gold secretly created Sanctuary for the Nephalem - the offspring of angels and humans - the Council of Archangels convened to decide on humanity's fate. Tyrael was the one who cast the deciding vote, and this means that he's responsible for that decision by the remainder of the Angiris Council, leading to him becoming mortal before the events in Diablo 4 all for the benefit of humanity. His role in the forthcoming game is not yet clear However, there are probable ways in which this character might be a factor in the future of Diablo.
Diablo 3 gets deep into Tyrael's saga, in which he is transformed into"the Fallen Star by tearing off his own wings , and then falling to Sanctuary that is where descendants of Nephalem dwell. As he joins forces with a powerful descendant, Tyrael defeats the evils of the prime and takes the control of the Black Soulstone. The moment the Archangel of Death, Maltheal, went after the stone, and then began to attack his friends He was the one who sent his companion to Pandemonium to defeat death itself.
Tyrael is able to keep his mortal form but reunites with his angelic brethren to transform into his Aspect Justice as well as of Wisdom. Diablo 3 ends with him thinking about whether his mortal companion, who may be corrupted, should be the new menace for Heaven, Hell, and Sanctuary or even life itself. There's a reason that Aspect of Justice and Wisdom will not be able to sit back while Inarius takes on an army of Hell in search of his past love, Lilith.
The latest Diablo 4 cinematic trailer from Blizzard includes Inarius confronting Lilith as well as armies at both of their backs. While this sequence doesn't have Tyrael's direct involvement, his creation of the Horadrim and his involvement with the various Paladins of Sanctuary means he is surely at work. Dark and light battle at the front, while the dead Tyrael is somewhere in between.
It is likely that his presence will be perceived through these intermediaries unless circumstances force his hand. Tyrael is still feeling the repercussions of destroying his Worldstone at the conclusion in Diablo 2. The mysterious artifact protected Sanctuary from Heaven and Hell and he stands as protector over the area in its place. Tyrael is unlikely to lead any further charges to Hell or travel any further beyond the Pandemonium Fortress, where he could cheap Diablo IV Gold offer advice as Deckard Cain for people who remain and listen.