A few examples of cool things that could be added to the Azeroth, what do you all think could be added?
Night Elves: I think it'd help differentiate nelfs from the Cenarion Circle, which has soaked up so much of their cultural identity, if they got a few more things based on Elune, maybe integrated the few remaining Moonkin or furbolg (the Horde can't sabotage ALL their diplomatic meetings) into their forces or had some kind of star-creature or "Moontouched" ancient or magical construct, perhaps they could touch upon the "Avatars of Vengeance" the wardens used in TFT.
Forsaken: “Big Daddy/Dragoon” Hybrids, any Forsaken with bodies too damaged to continue fighting or get proper repairs from a shadowpriest or apothecary or whatever could get a nice big metal suit to be integrated into and earn some fast cash and fame on the battlefield. They could march along the seafloor along with other Forsaken and attach depthcharges to Naga holdings and all sorts of fun stuff. Just picture it, giant diving suit type fellows made of black metal and full of green ooze
Humans: Alright this is honestly a tricky one... I'd guess either reverse-engineering Vrykul forgemethods or runemagic, or potentially some innovative way of using the Light. Someone more familiar with humans would have to give some suggestions though :\
Tauren: They're based on the popular conception Native American culture so why not add some Thunderbirds in the form of "Sun Rocs"? They've already got precedence due to the talon in the Ironforge museum found off the coast of Stranglethorn. Plus, in the actual legends the Thunderbirds fought off a race of nasty reptilian monsters, given that the Old Gods tend to favor lizards and bugs as servants, having these for the Tauren and using them against Naga or Flamewakers or whatever left the skeletons of those two huge things in Desolace would fit pretty well.
Gnomes: Have em take up that fancy blue dragonflight floating-letter magic and some of that stuff from the Nexus, with the flight disbanded as of Tides of War it's not like anyone's watching it! Sweet Surge Needle-y Titany Magic-tech goodness for redirecting Leylines through trogg dens or gathering the necessary energies to turn Gnomeragan into a giant floating sky city by ripping it straight out of the mountain ala-Dalaran!
Darkspear: Okay seriously there's so much cool troll shit they could be using right now that the other tribes have and the Darkspear never show off, seriously what the hell. Get some Golems or use those mask warriors more or some dire-trolls at least! Or, in the interests of having something uniquely darkspear...
Dwarves: They've got Dark Irons and they've been digging through Titan ruins for ages, they should HAVE golems already, really awesome ones.
Orcs: I always figured they could learn Blood Magic from the Blood Elves or from troll ritualists or even by reverse engineering mogu stuff. Blood's always felt like a very "orc" thing. Heck, perhaps they could have blood donations taken from civilians and moved by caravan to the frontlines and be the first to pioneer mundane blood transfusion. Though it's noncanon the RPG basically had orc engineers be like goblin engineers... but with the devices made hypersafe, since the idea was you couldn't die outside of combat due to a malfunction, so the pragmatic nature of tech development geared towards warfare could work too. It's been too long since we had landmines actively used in WoW, and since the goblins don't seem to make em like they used to, Orcs could do it!