It is likely his presence will be experienced through these intermediaries unless events cause him to act Diablo IV Gold. Tyrael is still feeling the effects of the destruction of his Worldstone at the end in Diablo 2. The mystical artifact shielded Sanctuary from Heaven and Hell, and he now protects the land on its behalf. Tyrael appears unlikely to lead any further ventures into Hell or even go further then what is known as the Pandemonium Fortress, where he might offer advice similar to Deckard Cain for people who remain and listen.
Five Diablo playable classes have been released so far each of which takes on options from earlier games. In the sense that each installment has provided something different Perhaps Tyrael will be a hand in the battle and help balance the sides by giving players the option to gain angelic or demon powers to perform duties to Sanctuary. This kind of strategy could very easily build on the multi-tree progression that was announced for the series.
It is unlikely that Blizzard intends to turn Angels or Demons into classes, considering that the game's focus is on people stuck between them. But as the mortal truly caught between Heaven and Hell Tyrael finds himself in a position unlike any other in the entire Diablo lore. He is more likely to be an actor of balance in the story, or even as a voice of reason instead of taking sides like he did in the past. Even if he's forced to choose the side of his opponent, Tyrael has come to understand the true value of the mortals. That is why he'll most likely be a part of the events of Diablo 4.
Blizzard's approach to speccing out your character's abilities in Diablo 4 is a blend of the Studio's approach to Diablo 2 and Diablo 3. The executive producer and director of the Diablo franchise Rod Fergusson put it, "Diablo 2 felt like you had to lock yourself in; you were able to switch your specs once per difficulty. In D3, you sort of changed your character like you changed your clothes. Everything was gear-based as opposed to skill-based."Fergusson added buy Diablo 4 Gold, "I think the fact that we have skills on the equipment [in Diablo 4] is really nice for experimentation -- as a sorceress I [might] get Blizzard [on a pair of boots] three levels before I should and I can try Blizzard to see if I actually want it."