Just an idea I had that could alleviate the need of items that have caused higher levels camping lower tiers.

Enchanting and Disenchanting would go unchanged mechanically, but remove the mech of dusting magical weapons/armor and add more alternative items. For example, follow the pattern you have for crystalized magic and magic frond. You can add magical branches to lumberjacking and fishing could produce any of these three options, as a wild card result. Add NPC drops, instead of named item drops, make it a chance to drop on every mob, a magical soul crystal of the appropriate tier to mob level.

I would also like the see enchanting require essence material or mana material from pure casters, similar to EQ. For example, +WIS enchant would require spirit essence (shm) or holy essence (cleric) to make. The spells could be added to the casters rosters at early levels, but advances in tier with level per the norm. For melee based essences, you can have an enchanter skill added called Extract Essence, which would be a long cast skill and vial required, like a channeled spell.

Just my random idea, worth two cents.