Since druids in this setting are supposed to be changeling. Why not give them something appropriate to the title. A level 8 perk which allows you to select a special animal/human hybrid form.
This would eliminate the need for the lycantrope subraces and give people who like those themes more incentive to play druids. The form should be accessed via wildshape and have all the same restrictions as any wildshape. So naturally it won't be as strong as the lycantrophy template.
I think it would be a neat way to give more customization to druids and maybe even help people see changlings in a more sinister light.