The bad news is that you're still going to have to do WP on occasion, but the good news is that you'll have a few new options, starting with the Duty Roulette. The Roulette gives you extra rewards based on your role and the random nature once per day, and those extra rewards can indeed include Myth tomes. It appears to be based on the level of what you queue up, as well; the demonstration screens show a level 50 WAR queueing for low-level dungeons and still earning 10 Myth for the effort.
Beyond that, though, three new dungeons are being added. Pharos Sirius is totally new and wraps up the storyline on the Isle of Umbra, which had a fairly obvious hanging thread if you've gone through the quests there. You've also got the new hard modes for Copperbell Mines and Haukke Manor. All three of these dungeons require a quest to unlock, and all three correspond to one of the major cities, so it's no great leap to say that stopping by each and then heading to the dungeon entrances will allow you to add in these new challenges.
Bear in mind that these new dungeons appear to have similar requirements to Wanderer's Palace and Amdapor Keep, so if you're already in full Darklight the new equipment is unlikely to be an upgrade for you. No word on whether these dungeons will contain more accessories and weapons to ease the gap between lucky Primal drops and the GC weapons.more:buy ffxiv gil