Quote Originally Posted by Swede View Post
Mythic Armor and Helmet are the only thing we're planning to upgrade and you have to have both in order to do so.

The current Mythic weapons should still be the best of their kind in this next expansion. If they're not, we'll think about buffing them. The goal has always been that Mythic items should be top of the line for one more expansion after they are released and Arcane items for two expansions. However, we never intended to upgrade them beyond that and have never said we would do so, with the exception of the Armor and Helmet.
That should answer the question..

Besides the mythic warrior weapon is a tanking weapon, not a damage dealer.