There's a reason that Aspect of Justice and Diablo 4 Gold Wisdom likely won't sit idly by while Inarius marches an army upon Hell in search of his former love, Lilith.
The latest Diablo 4 cinematic trailer from Blizzard includes Inarius in a battle against Lilith Armed forces at both of their backs. Although the scene doesn't show Tyrael's personal involvement, his design of the Horadrim and influence with the various Paladins of Sanctuary indicates that he's involved. Dark and light clash on the battlefield, while the now-mortal Tyrael lies somewhere between.
It is highly likely that his presence will be felt through these intermediaries until events cause him to act. Tyrael is still feeling the repercussions of the destruction of his Worldstone at the end in Diablo 2. The mystical artifact shielded Sanctuary from Heaven and Hell, and he now serves as the protector of the land in its stead. Tyrael is unlikely to lead any further charges into Hell or take his fight any further that The Pandemonium Fortress, where he might provide advice like Deckard Cain for those who will stay and listen.
Five Diablo playable classes have been announced so far each of which alternatives to the earlier games. Given each installment so far has brought something new to the table and exciting, maybe Tyrael could become an element of the battle, balancing the sides by offering players the ability to summon angelic or demon powers in exchange for duties to Sanctuary. This type of game mechanic is likely to be similar to the multi-tree progression that was already confirmed for the series.
It is unlikely that Blizzard plans to make Angels or Demons into classes as the franchise focuses on the people who are caught between the two. But as a mortal caught between Heaven and Hell, Tyrael sits in a unique position in all of Diablo story. He is more likely to be an equalizer in the tale, perhaps even as a voice of reason rather than a side-lined player as his former self. Even when forced to take positions, Tyrael understands what is important to mortals and that's why he'll most likely take part in the events in buy Diablo 4 Gold.
