This is for players who are playing WoW for the first time. The current questing system puts them directly in Battle For Azeroth, and is very confusing lore-wise. I have recruited 2 friends who were so confused with the Story since they landed in BFA directly.
How about a Single Specially designed Quest chain that will take the player zone by zone everywhere in WoW starting from 1 to 50 while traveling throughout Eastern Kingdoms / Kalimdor > Outland > Northrend > Cata Zones > Pandaria > Draenor > Broken Isles > Then Kul’Tiras/Zandalar and finally get the normal quests in Shadowlands or whichever expansion is current.
This will be ONE Single Question Chain like a campaign that will help the player level to 50 (Or whichever level is highest in the previous expansion), where he will be introduced to all the Major characters of the game and get to know the Lore of the game till the current expansion.
While the new player experience certainly is horrible, from a story standpoint, I don’t think that’s a great solution for it. The addons aren’t really working together to give a good impression of the world of Azeroth. Jumping through Outland, then Northend, then Cata zones, then Pandaria, then other dimensions, then stopping an alien demon invasion, then visiting some unrelated islands, then going into the realm of death would just be horribly disjointed. And a new player really doesn’t need all of that. I would much prefer an Azeroth questing experience, that here and there brings up the other addons’ stories in relation to how they affected Azeroth, with some optional supplementary material, like in-game books or Lorewalker presentations as they had in MoP, to allow the interested player to dive a bit deeper. The old addons are just outdated. It’s nice that we can still play there, but they really shouldn’t highlight them to new players right now.
Apart from that, giving us a coherent scneario to understand the story of the addons we missed might be nice… but I feel it is too much work to leave that to “new player only” content. If they were to do something like that I’d prefer to see it explored through timewalking content that was tied to usual endgame-reward-loops. Not for people who want to get a first impression of Azeroth, but for people who already know and actually understand the basics, and are interested in looking back.