Originally Posted by
Hitei
All of them are bards in essence, which is all that is necessary. Chen was a Brewmaster, not a monk, because "monks" as they existed in wow pre-MoP were just the scarlets who were unarmed. Chen was a character whose kit and theme fit well with the conceptual monk and so was used as a main stepping stone for the monk class. In exactly the same way, there are a handful of literal bards in wow (Hearthsinger, Russell, and Zor'lok are all literal bards), but there are a lot of characters who use kits heavily steeped in the bard thematic (read: sound/music based magic).
ETC is shown as being perfectly capable of using magic to fight, and both bands are able to cast magic with music, they simply don't fight. Not fighting =/= not able to. Zor'lok is literally a fucking bard. One of his primary mechanics involves singing a damaging song, attenuation is literally a phenomenon that comes out of music and sound technology, just because he isn't strumming a harp doesn't change what he is. Murmur is a primordial sound elemental who is one of the oldest beings in existence, and represents an easy power source to draw from. Atramedes' reasons for using sound magic don't somehow make him not a sound magic-user, and likewise Chi-ji being a bird doesn't change that his entire kit is singing songs to heal/damage in typical bard fashion.
What you have for bards is literally more than monks ever had pre-MoP.
Monk took an iconic fantasy archetype, pulled themes and some abilities from an existing, minor WC3 character, and then extrapolated all the rest of the class from the pandaren theme and the fantasy archetype (agile, meditative, fist-using, chi, etc.)
Bard is an iconic fantasy archetype, with several existing minor characters one of which is also a hots character, a WC3 unit (kodo beast), which has also has a large pool of existing creatures to pull abilities and thematics from for the sound/music theme in addition to the fantasy archetype.
There is literally no reason bard couldn't be done.