If Bard is just gonna be getting a single target damage LB comparable to the melee LB than I much prefer they just keep the healing LB. Honestly, why do Bard even need a new LB? Caster and Melee already got all the bases cover. It would be MUCH more useful for Bard to just keep their healer LB, why give them a damage LB when you already got a caster and a melee? The ability to save the raid when both healers are done is much more helpful.

If they're planing to give each job their own unique LB with unique mechanics and formulas than I predict a huge heap of unbalance issues.