Honestly I find that ESO is starting to be redundant with always the same weapon mechanics. So still seeing shield sword - dual weapons - two handed weapons. I saw both types of staff and remembered my character from skyrim.
In skyrim the staff was held in one hand with another staff and a shield. So that gave me an idea, the scepter.
Scepter/shield
The character would be more of a tank or even a defensive healer focused on barrier magic.
Double scepter.
here it is not a question of defense but above all of control, a style that I find is quite lacking in ESO. The skills would be, like the nightblade before its redesign, debuff/buff. The character would have the ability to "steal" stats from the enemy to give it to his team.