would be a good change
hunters would be a little more gay because of aspect of viper, would never run oom in arena/ws and would have disengage and aim shot
mages would have blink and evoc which is great even though they dont go oom, also would have icy veins even though that isnt that big of a deal because casts would be way under 1 second
rogues would have rupture, crippling poison, which isnt that big of a deal in a premade because of all of the poison dispelers and stuff. priests will get shit on in arena and shit but arena at 19 is kinda z_z_z
paladins would do a bit more damage with exorcism which is needed, they would have flash of light would be slightly more valuable because of an extra poison cleanse because of rogues although it wont be that big of a deal, rogues will still get kited once it crippling poison gets dispelled and they have a snare on them. also would have kings again ! too bad you cant get conc aura @ 19 for aura mastery
priests will have a lot better survivability with desperate prayer and flash heal, also would have fear ward and a lot more offensive power with holy fire and devouring plague
shamans would also have water shield and frost shock which is kinda gay but oh well
druids would have last stand , cat form and rebirth but still wont be worth taking as a dps in a premade. but would have to pick between cheaper mana cost on travel form/bear form/cat form or 15% run speed indoors in cat form
warlocks would get soul link and a little bit more damage which both r needed
warriors would get retaliation and piercing howl which is fucking amazing and really needed
hunter stacking would be gay because several seperate aimed shot cd for switches on offense would be insane
mouts would be the best change over all
19 is way too slow paced and theres way too much kiting because theres no gap closers which is retarded because theres absolutely nothing melee can do to catch back up to people once they are snared and other people people gain some distance.other then sum long cds or dispellable swiftness pots. so mounts will really help rogues more then anything, the only time a fc dies is when debuff hits, only time a fc dies before debuff is if the team is terrible
although i dont think hunters should be the ones getting a MS at 19(even though a ms is needed) i think warriors or rogues should get it, but blizzard isnt going to redo talent trees to attempt to balance lower brackets