In the latest version of the Regional Cup Document:
Models that have not yet been released to the general public at the time of the event (such as those available through a pre-release) are legal for use in Guild Ball tournaments. Alternate sculpts are also legal for use in Guild Ball tournaments.
In the case of the LE Rage model, it can be used to represent either version of Rage. Is this true of all limited edition models? If the rules for vGutter are released before her model is, will it be legal to use the LE Solthecian Gutter model to represent her in a butchers team?