Diablo IV's reveal benefited from a very good reception, however, a portion of the fan base began expressing their worries regarding the apparent inability to customize skill slots suggested by the BlizzCon gameplay demo.
As Diablo IV does seem to take inspiration from Diablo II in more than just aesthetic, it's now been confirmed that skill slots in the upcoming entry will be customizable in a similar way to how things worked in Diablo III.
Diablo 4 Skill Slots Customization
"There’s a misconception that Diablo IV will lock skills to specific slots because of the BlizzCon demo user interface. Like many other things in the demo, the UI is not final and we will support Elective Mode-style skill selection.", Lead Systems Designer David Kim wrote in a post.
"Skill selection and assignment will always be completely open for all players.", he continued. Diablo III actually limited skill slots to certain spell types as long as players didn't select Elective Mode from the options menu.
Allowing players to mix and match whichever skills they want is clearly a welcome option that will, surely, help with build diversity.
Diablo IV will also allow players to rebind the keys for all their skill slots on both keyboard and controller. This includes changing the primary attack to something other than the left mouse button, helping separate movement from attacks.
The same post also details the team's approach to power in Diablo IV. "[...] in Diablo IV, power doesn’t come mostly from items. We want to have a good mix of power sources: characters naturally get stronger as they level up, skills have ranks that increase power, talents provide specific playstyle choices and additional character power, and of course items grant power and meaningful choices as well."
Diablo IV is currently in development for PC and consoles.