The developers mentioned speeding up the charge time for breaths during the next update but this may have unintended consequences. Many DRGs rely on the moderate delay of Healing Breath's activation in order to equip the proper equipment to boost its effectivness. Since equipment that has "Wyvern HP + X%" takes about 1-2 seconds to be recognized by the server(Opposed to Wyvern HP +X"), if the Breath activates too quickly, the benefit from the +% gear will become much harder to use. Removing the "percent" aspect from those pieces of equipment that increase Wyvern HP would be a step in the right direction since it takes comparitevly long for the server to calculate the HP%. Many times it isn't calculated fast enough between the time we hit our "Healing Breath" macro, with the gear included, and the breath actually activating, so any potency that HP% gear grants is lost. Maybe change pieces that have HP+% to simply "Enhances Wyvern Breath Potency" to a similar effect, or just HP+300 or something.
Additionally, many DRGs swap to equipment that enhances Wyvern Breath Attacks immediately after a weapon skill(Glassblower Belt, Relic Helmet, Lancer's Torque etc) to increase breath damage. If the Breath goes off too quickly after a weapon skill, this again would be too hard to use. Also Wyvern Breaths would not be able to skillchain if they fire off too quickly(although a magic burst Wyvern breath only benefits from increased accuracy anyway)
I would rather elemental Breaths damage be boosted dramatically to a value 2-3x greater than their current power, to justify the charge time it takes to use(and the loss of 1-2 attack rounds) rather than speeding them up too much.
Also as Ophannus mentioned a year ago, a Job Ability 'stance' that prevents the Wyvern from using Breaths or locks their TP from being expended upon every breath would be a great way for DRG to benefit from the aspect of Spirit Link that draws TP from the Wyvern. That property of the JA is hard to use because Wyverns spend all their TP every few seconds, whenever a DRG uses a WS(an Wyvern TP adds minimal benefit to Wyvern's TP), maybe channging it so Wyvern Breaths don't spend TP unless used with Restoring/Smiting Breath, so we can use the TP transfer aspect of Spirit Link more tactically for increasing our weapon skill frequency further in battle?