When wielding a spear you should have a pole vault ability to cross lakes and flank enemies...make it cost stam!
Also if a noob, there should be a chance you face plant and stun yourself.
The Hunters have an Arcstrider subclass which is just stupidly fun and effective. Bungo really found a way to make a spear one of the most fun weapons in the game... a game with guns and space magic and flaming exploding hammers! D2 is structured in a way that kind of makes me hate it long-term, but the moment-to-moment play is undeniably FUN in a way we just don't have much in ESO. I miss my electric poledancer sometimes. :P
Just need to add in some thrust/jab/slash type animations, tone down all the electric stuff (since that doesn't fit with a Stam weapon at all in ESO, obviously) and we'd have a seriously fresh new thing to toy with! I would LOVE this, personally. Spears, please!