I feel like the berserker type could be covered by primalist if there was a decent petless option that didn’t focus on 2h.
I haven’t played it yet, but the swashbuckler style seems pretty much covered by melee rogues with flurry, although they don’t really focus on block…the glancing blows is essentially the same though. I’m still in the process of trying bladedancer, but in my mind, this is what they were going for.
I’m not sure if a full on engineer really fits here, and I’m not sure where they could put it…probably an off-shoot of rogue. Fire poison vials kinda leans that way a bit, but I haven’t leveled a rogue yet, so i’m not sure.
I feel like warlock will probably cover the “evil mage” part, but only time will tell. They may want void & necrotic to be mutually exclusive, I’m not sure if they’ve commented on this.
A warrior type that summons undead or demons, or possibly transforms into a melee version of Reaper could be interesting. I wonder if they could put in some passives or nodes to give reaper form more of a warrior feel, or if they’d need a whole new mastery or class to do it…or Warlock could have an option to be melee, as that’s pretty close depending on how they plan to build it. Some games have warlocks transforming.
There’s a chance the runemaster might cover some healing/support aspects that you’re mentioning, but I don’t think bard is going to fit in anytime soon. Usually I would say this mastery would be in the rogue kit, but not many of the rogue skills really scream support, or music, or anything particularly “bardy”. I sometimes like this type of character, but I’m not sure where’d they would fit it in.
I 100% agree on monk. Maybe pugilist as a starting class and have bards/monks as two of the available masteries? Usually bards are portrayed as having some acrobatic skill, so there’s some overlap here.
Another physical ranged specialist would be welcome. When I think d2 amazon, I think of her ability to be melee OR ranged, but not necessarily both. Warrior woman could have a link with monk, focusing on martial arts, kind of a blend of d2 amazon & assassin? There’s a bit of overlap between assassin & rogue though, so maybe someone that uses guns or crossbows? I feel like if they add another bow user, marksman would almost certainly be linked to that class, and then they would add in another mastery for rogue (maybe the monk or assassin kit?