Although I like the idea because dodging was a fun mechanic in GW2(despite being flawed in many ways), it just doesn't fit in what we know about TESO's combat. We already have both power attacks and Block working off Stamina during combat. Block would be useless except to players focusing on Block skills/passives. And since combat isn't true real-time (as it is in GW2, for example), dodging would be harder to implement. Dodge couldn't be used after seeing an attack coming, because the people who've had the chance to play said the attacks hit or miss based on the underlying mechanics rather than players' positioning, so it it would only be useful prior to an attack being launched which would mean you either pray your opponent is about to use a power attack/skill, or you'll have wasted the Stamina odging on a regular attack.
Tl;dr: I think Block and Sprint will work well enough to fill the role Dodge otherwise would.
Actually, combat is now confirmed to be real time. You still lock on in a sense, or target but you use m1 for an attack m2 for block and the hotbar for skills, at least the interviews from the past few days have led me to believe. With this in mind, I just realized that having real time combat could add another layer of complexity to the combat. You could do for example a jump attack the reduces the targets armor because you hit him/her from above, or if they did implement a dodge ability, being able to time properly which would allow to do a recovering blow or something along those lines. Assuming all the info from the past few days is true, ESO will have real time combat, and I would hope that ZOS is exlporing these types of options.