Eh, unless they add a large handful of shields with a wide variety of stats on them to replace things like Pet: Attack, Pet: TP Bonus, Attack and/or acc for the master, etc, I would prefer to stay dual-wielding. Shields have always been fairly negligible for anything that's not a PLD (though I'll admit I can't think of ever seeing a sword-and-board WAR, so there's a possibility) in reducing or mitigating damage, and while it would open up Fencer options, I feel like that would cripple too much of both the master and pet's DPS. Believe me, I'd love to sub something like /WHM for Reraise, backup cures, stoneskin, etc if I have to be on the backline, or something like /WAR on the frontline, but I feel that the loss of the second axe with all the various weapon bonuses is too much. But unless you can replace Skirmish options, Charmer's Merlin, Kerecatl, etc, it's just going to be a no-go. A second axe just offers us way too much.