I love nature based classes!
This would not do if they didn't have the ability to utilize plants. Plant based powers were always my favorite (like Poison Ivy), and I hope to have a build on it.
Outside of that, I feel Druids should be the definitive Jack-of-All-Trades, similar to how they are in World of Warcraft. In WoW, they fufilled many roles, though you needed to specialize in one (which, to me, made the point of them being jacks moot). In this, I should have flexibility to take on multiple roles based on my form. The way I play them in Baldur's Gate 2 is just that way (with a help of a mod or two); he has a few healing spells, some offensive spells, and I shapeshift for melee. I would love for this class to play similar to that.
EDIT: I should really read the thread before posting, then I would know that I disagree a tad with how others think the druid should be handled. If we are allowed to focus on a seperate skill tree, then we should at least have the ability to dip into all three, or two, or however many trees there are. Basically, I don't wanna be forced to turn my Jack into a specialized character; if I wanted to have him become a healer, I would have picked a healer class and have been done with it.