Bard .... I would love to see a decent bard or minstrel class. I haven't seen a decent bard class since Dark age of Camelot, which was an MMO and not a action RPG. Still it would be nice to see in TL2. They could have a number of songs at their disposal to either support team members in combat by buffing them with attack speed, run speed mana/hp regen ect. Some songs could be geared towards enemy by doing the opposite. Hinder movement, attack speed ect.
I had an idea for a Bard not so long ago, after seeing MFS88's awesome two-handed axe guitar. This Bard wouldn't be your average Bard - he'd be a lot more like Eddie Riggs from Brutal Legend, with heavy metal lightning and fire and stuff like that. Probably demons too.
I know that's not what you had in mind, but I think that'd make a more interesting class than a typical D&D Bard setup.
Cleric ... Not everybody likes to run into zergs of mobs. Some ppl like myself like to play support roles like this. I'm unsure how it would effect balance but it would be nice to see a healing class. One of the tree's could be dedicated to smite spells to make it interesting.
My only problem with the Cleric is making it different enough to the Paladin to justify it's existence.
On top of that, a dedicated support class, personally
, won't fly with me. It would have to have at least SOME damage capability. You could swing it like a WoW Priest, with one tree full holy power, one tree more martial, and another more darker and evil. That might work.
Casters.... I know with necro and embermage there are already a few casters but personally I love to blow stuff up with spells. It would be cool to see some other casting classes with interesting skills that could effect game play. I don't have anything specific in mind as casters as just fun in general.
Tried the Techmage before?
I've got a class spec half-way done that incorperates a lot of casting. Not exclusively, but lots of lightning and nature spells and all that good stuff. Might be a little while before we see that guy, though.
And I've got an Elementalist spec, again no idea when it'll see the light of day, but he's all planned out. And if you like wierd, crazy gameplay, you're going to love this guy.