MechaPilot
Explorer
It's hard for me to participate in a thread like this because I don't know the 4e classes and it seems like a lot of people have very specific associations between evocative words and 4e class design. (E.g., the sentiment I heard during Next playtesting that a Warlock without "Eldritch Blast" is not a Warlock. Left me scratching my head.)
Don't let that stand in your way. The title is about classes in general, not just updating 4e classes.
That said, the archetypes that I would like to see are:
A primal/spirit-based caster. E.g. Shaman, Witch-doctor, etc.
A storybook Witch. Potions, charms, curses, and polymorphs (maybe even a lesser polymorph that allows a save every round). No blasting/nuking spells, but maybe one evocation cantrip.
The Witch could be a new sub-class of Wizard with school restrictions (e.g., Disadvantage on attack rolls, Advantage on saving throws, for Evocation spells.) Alternately, it could be a Warlock subclass (Patron = "The Sisters")
I think a well-done witch class/subclass would actually be quite beneficial in my favorite setting Ravenloft.
And other than that everything I'd like to see could be a sub-class: Some new Monk options. A Blood Sorcerer. A tree/plant Druid. (And maybe an Underdark druid?) An armor-less Cleric support/healer.
I'd like to propose a new option: a kit or theme. Part of the problem for me with making some of the things I want as subclasses is that a subclass doesn't modify other parts of the class. For example, a subclass isn't going to remove Ki from a monk or grant unarmored defense and unarmed strike to a fighter to make a mundane martial artist. So I propose something that will. Call it a kit or theme, whatever fits your liking, but the premise is that it layers on top of a class and changes features that would otherwise not be altered by your selection of subclass.