Board Thread:WARNING ALL USERS False Info\Spoilers/@comment-108.81.117.0-20131017141336/@comment-11533671-20131022184904

Jeff had established in an interview heading into S1 what his vision is for a full formed werewolf and at that time it was Peter's full form from S1. Since S2, it has basically been said that the real reason we don't see it in the others is the cost to do the CGI.

In other interviews headed into S3, Jeff seemed to have made a decision to add stipulations on the form in order to fill in the "gap" made by the budget. He used Derek's forms from S1-S3 as an example, explaining that Derek's form is developing more and more. There is an evolution involved in attaining the full form state. Throughout the series Derek's brow and other features have slowly been becoming more beastial.

The same will happen with the others. Eventually the power to fully transform will happen but it is now more dependent on the characters growth. It is fully possible that an Alpha may not ever attain the full form IF they don't learn how to do it themselves. It is much more of a zen type of thing now. One has to reach a certain level of wisdom/control before "unlocking" the ability. (AND when they actually have the cash for that person's full form to be seen LOL)