Even being a classic server, the addition of a variety of ranged and mage gear would be very beneficial, not only to PvM, but a big change to the way PvP was handled.

Opening up more options with combat, such as taking away the instant switch to fisticuffs when engaged whilst ranging, would give players a new way to approach things in a familiar setting.

Adding in tiers of range and mage armor, making them viable combat choices, just seems like a good move.

Mage:
Add a penalty to casting while wearing heavy equipment.
An assortment of robes, off-hand items, and rings to benefit this play style.

Range:
Again, add drawbacks to range if not properly geared for it.
Additional leather items for the low levels, new crossbows, and more advanced armors higher up.

This brings the effectiveness of the combat triangle, and above all, Pking would be a blast if you actually had to worry about that caster or ranger 15 tiles away.

Thanks for reading.