Changes

'''Can't be rogue'''

In Diablo 3, every character can be a male or female. So I think rogue (which is a pure sisterhood) or amazon cannot be the 5th class. The character could be a ranger (male or female) with good ranged skills, tracking and healing abilities :D If he is able to fight with a mount, that'd be awesome. Maybe requiring a mount is why that 5th class cannot be represented using existing NPC model art.