What would you like to see in the story? Can be anything. Racial narratives, factional narratives, etcetera. What would you like to see in the story that would in your opinion improve it for the better? Can change stuff that’s happened in the past, because why not. I’ll throw in a couple of my takes.
A racial narrative I’d be interested in is a Shu’halo unification, by this I mean having the Kalimdor Tauren forge stronger ties with the Taunka of Northrend and Highmountain on the Broken Isles. Display Baine Bloodhoof working alongside Mayla Highmountain, Roanauk Icemist, Jevan Grimtotem, etcetera to build more prominent and visible bonds; sharing with them their culture and strengths. The Kalimdor Tauren could share with them the training and culture of the Sunwalkers and Seers (already done in the case of the Seers), the Taunka could provide their knowledge on how to survive in even the most hellish of environments; Northrend was after all, not a warm place (in more ways then one) to be in.
The Highmountain could in turn share with them their techniques of eagle-riding and bonding with them, their blacksmithing expertise and the knowledge of their Spiritwalkers and shaman. Considering MoP’s on the mind, I’ll also toss in the Yaungol. The tauren leaders could work to build bonds with their ancestors, either to bring them in the Horde outright or simply ally with the Yaungol on their own, perhaps utilizing Karak the Defeated or even Ordos himself for this purpose. While one could shove all the tauren into Thunder Bluff & Mulgore, I think that’s a bit boring; this could be reflected by showing settlements of the various races in each other’s lands. Highmountain buildings in Mulgore, Taunka and Kalimdor Tauren dwellings in Highmountain, so on and so forth. It would also be reflected in more presence of Highmountain Seers and the new appearances of Highmountain & Taunka sunwalkers as well as Taunka seers, and last but not least it could also be shown in a retaking and restoration of Icemist Village.
For something that’s changed? Human Heritage. The Heritage focused on Stormwind, and that’s fine but it was a bit boring. The Orcs got the presence of their clans back, the Humans should be afforded the presence of their nations in a similar fashion. I’d have written the heritage to be about Human unification calling back to the Council of Seven Nations and/or the old Arathor Empire; how if anything that can be said about them, when banded together Humans are survivors and are capable of many great feats of strength that have shaped Azeroth’s history in some form or another such as the formation of the Kirin Tor, establishing Theramore, the legacy of the Guardian of Tirisfal, what in the right hands the power of the Ashbringer is capable of (though this is also shared by the Highlord of the Silver Hand in Legion who can be any race)
Stromgarde - King Danath Trollbane
Lordaeron - Not a nation in any capacity in the present day but was once a notable one all the same. Possibly Turalyon, though Sky Admiral Rogers is an option (and my ideal pick)
Stormwind - Possibly Turalyon again, though he’s not my ideal pick here; my ideal pick here would be General Hammond Clay.
Dalaran - Not an Alliance nation let alone a solely human one in the present day, but Nazgrim and Rittsyn showed up for the Orcs despite being Ebon Blade and Black Harvest respectively so fair’s fair, even if they weren’t representing the Warsong and Bleeding Hollow clans respectively. Ansirem Runeweaver.
Alterac - Not an Alliance nation, or a nation at all but they’re underrated and it’d do well to give the Alteraci a refreshed spotlight. General Hath.
Gilneas - Either Darius Crowley (my ideal pick, i’m tired of the Greymane clan when it comes to Gilnean plots) or bring Bradensbrook into the Alliance with Mayor Heathrow.
Kul Tiras - Fair bit of options. Lucille Waycrest, Cyrus Crestfall, Taelia Fordragon or my ideal pick – Tandred Proudmoore.
Like man, I’m not even surprised or much sympathetic about Horde doing “evil” or “horrendous” things to others anymore … I’m burnt out. It’s hardly surprising, I don’t consider myself a part of the faction that committed the action – just part of the people within the faction who had to act in on ‘Damage Control’ and conveniently fight in order to survive the retaliation 
… Merely just make things ACTUALLY morally grey for once … You know, how Blizzard keep telling us things are between the factions, despite being obviously otherwise 
Thankyou for acknowledging it. 
I’ve even been arguing with them on the forums. 
Oops!