Wild Shape says it works like Beast Shape 3 at level 8 does that include allowing you to turn into a medium magical beast?
At 4th level, a druid gains the ability to turn herself into any small or Medium animal and back again once per day. Her options for new forms include all creatures with the animal type. This ability functions like the beast shape I spell, except as noted here. The effect lasts for 1 hour per druid level, or until she changes back. Changing form (to animal or back) is a standard action and doesn't provoke an attack of opportunity. The form chosen must be that of an animal the druid is familiar with.
At 8th level, a druid can use wild shape to change into a Huge or Diminutive animal, a Medium elemental, or a Small or Medium plant creature. When taking the form of animals, a druid's wild shape now functions as beast shape III. When taking the form of an elemental, the druid's wild shape now functions as elemental body II. When taking the form of a plant creature, the druid's wild shape functions as plant shape I.
so no, the wild shape ability changes the types you can turn in to. animal plant or elemental is all you get for base druids.