The latest "variety pack" of the Ask Us Anything series sees Elder Scrolls Online developers answering a host of questions ranging from armor "sets" to veterans' points to PvP resurrection.
Will there be items or spells players can obtain that will cast an appearance illusion over them, making, say, a Breton look like an Argonian or a frost troll for a limited amount of time? - Jared Dennewitz
Yes. We have a disguise mechanic in the game, which allows you to equip an item that changes your appearance. This can be used for costuming purposes or, for instance, to infiltrate the camp of an enemy. There are also spells that change your appearance for a limited amount of time—these can change your appearance in more drastic ways than disguises can.
Read more on the Elder Scrolls Online site.