The harp is a lie.

[Krausus]

It looks decidedly like a Scythe. If it is then that means that jobs are getting their own weapons or variants on weapons. The point being, job specific weapons. Kind of negates the whole "weapon types can only be classes" thing.

if you look closely the curved part is part of the leg armor he has one leg up in a captain morgan pose or like the pose kain is depicted in so many times.

edit: it is also way to small to be a scythe blade