As aforementioned, Diablo classes tend to fill certain niches and this intends to include a sort of "Wildcard D2R Items." These are classes that aren't necessarily restricted to something by necessity, instead being a unique class that eventually stands out for the game.

Whether this is intentional or not is up in the air, but it's as obvious in Diablo 2 as it is in D3. In Diablo 2, this was the Necromancer. Even today fans clamor for the Necromancer of the D2 days, and this popularity is at least one reason for why Diablo 3 added Necro as DLC.

The same could be said for Demon Hunter in Diablo 3. It was the stand out Wildcard, and while arguably this could have been the Witch Doctor, it didn't really hit the same strides as a watered-down replacement for the Necromancer.

As such, it would make the most sense to see Diablo 3's Demon Hunter to go the same way as Diablo 2's Necromancer, joining the subsequent game post-launch, not at launch. This leaves the "Wildcard" entry for Diablo 4 in the air, and though the Demon Hunter is less likely as a result, this Wildcard class may just be a good surprise for fans of the franchise.

Blizzard is planning on giving its next big update regarding Diablo 4 soon. A Diablo 4 announcement is planned for BlizzCon 2021, according to Blizzard D2R ladder items buy, which will look different than previous years due to the coronavirus pandemic.