As mxs said, any character can be third person, but for non-wizard style characters you have to make some tweaks, theoe tweaks need to be done at the users end because they include making a copy of and editing default media.
To put a non-wizard third person character on the store you would need to upload those tweaked files too which is not allowed for licensing reasons, or describe how to make the adjustments on the items store page, which would be over complicated for the user, which the store doesn't like you doing because they manually check to see if it works in gameguru and testing them would increase approval times.
So until Lee makes third person easier to do we probably won't see many non-wizard third person specific models.
i5, NV960 2GB, 16GB memory, 2x 2TB Hybrid, Win10.
i3 , Intel integrated graphics, 6GB memory, 512GB Generic SATAIII Win8.1.
Intel Celeron (duel Core), Radeon integrated graphics, 4GB memory, 180gB Generic SATAII, WinVista.
Q6600, Intel integrated graphics, 8GB memory, 512GB Generic SATAII, Win7.