WoW Wikiによると
> In interview with Chris Metzen, Metzen revealed that
> Sylvanas was ordered to move south into Gilneas
> because the Horde wanted a port in northern Lordaeron.
> Metzen mentioned that Sylvanas was "in the dog house" with the Horde
> after the Wrathgate events and has to move when the leadership
> of the Horde orders her to do so.