I think there shouldn't be a wide range of weapons, but the weapons can be turned into a variation of that weapon. Maybe the sword can get thinner but faster to represent a katana or it should get bigger but slower to represent a greatsword. Same with the bow. Maybe there can be upgrades which allow the weapons to do special moves for a certain amount of energy. How they get the moves can be decided by the dev who I think knows best since he's the one who at least kind of knows what the final game should look like. But maybe it would be cool that we would have to kill a 'special' enemy that drops a 'Data Chip' that contains the special move.
Also UPDATE HYPE