Assuming there aren't [i]quite[/i] too many mages, I think a character specializing in Alteration magic would be quite useful and make sense being in this company. Alteration isn't very useful in the ES games, where you can just hack and slash your way through anything without any sort of care, but I think it'd make for a good support character. Though time will tell just how much overlap already exists with the characters that have already been somewhat formulated, no?