I don't think that I have ever played a Druid. I hated 3.5 spellcasting classes, so that's not that surprising. Like everything in this edition, though, I'm definitely curious. Knowing that it's Primal, and knowing how the Barbarian looks, I can't help but think that it's going to be a Druid focused on elemental spells, but with some nice spells that change the environment.
Primal Controller. I almost guarantee a lot of Lightning and Poison damage, a little bit of Cold damage, and almost no Fire.