It is unlikely that Blizzard plans to create Angels and Demons D2R Items into classes, since the series is centered around those stuck between them. In reality, though, as the only mortal stuck between Heaven and Hell Tyrael is in a position unlike any other in the entirety of Diablo history. He's more likely to play a balancing act in the story, or even an impartial voice, rather than a side-lined player as the past. When he's forced into taking positions, Tyrael understands what is important to mortals. That is the reason he'll participate in the events in Diablo 4.
Blizzard's way of speccing the character of Diablo 4 is a blend of the studio's approach to Diablo 2 and Diablo 3. The executive producer and head of the Diablo franchise Rod Fergusson put it, "Diablo 2 felt like you were locked in; you were able to change your character each difficulty. With D3, you sort of changed your character like you changed your clothes. Everything was gear-based as opposed to skill-based."Fergusson added, "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."
The game's director Joe Shely told Polygon in an interview with a roundtable during a roundtable discussion that "having your character appear to be an assortment of choices you made can lead to interesting choices, or at least intriguing opportunities."Shely stated she believes that the Diablo team is aware that players, especially beginning, may not have a full understanding of each class' set of skills. They will be looking to test their skills.
"When you take a look at our respec systems," Shely said, "which apply to both the skill tree as well as Paragon for later levels which is our endinggame advancement D2R Ladder Items Buy system. We've really focused on approaching it in a way that makes it clear that the choice you make is important and that your character's different from every else's character, but that you're given a lot of freedom to test things out.