Okay hear me out. What if Blizzard implemented Vanilla timewalking so that by speaking to Chromie, you could go back to the original vanilla zones while the timewalking event was up? You could even throw in some of the original vanilla dungeons or raids as well.
Thoughts?
Yyyeessssss!!!
I want old Plaguelands back!!! It was oddly fun to get reckt by Nathanos, and Scarlet patrols and such. Also, the stories there! 
Should be timewalking for every dungeon & raid available. Along with it, they need to do 2x or 3x bonus events from now on. Having just 1 bonus at a time is for the birds.
Make time walking for classics and every other dungeon, if people afraid of un balance loot. Then just make either cosmetic sets for does dungeons, or sets that benefit you in certain dungeons like a classic set wrath and so on. I think that be kind of cool but yes more classic dungeons for m+
I was thinking about Vanilla Timewalking like seeing the Old Zul’Gurub Raid again for like atleast two to three weeks it’s up as while as Naxxramus too.
I wish they would do this, I’d sink a lot of time into reliving it again. I still kept my 60 in classic-classic because of it.
Yes please
Would be cool but really boring after the first time because almost every vanilla raid and dungeon boss just boils down to tank and spank, sometimes with adds.
They said that code no longer exists in retail. It’s all been replaced by the Cata revamped zones. They had to recover and recreate a whole bunch of it for classic.
It’s hypothetically possible but it’s not like those zones are just sitting in the game hidden by a toggle. You’re asking them to re-recreate vanilla in retail.
I’d, personally, rather they spend that time doing literally anything else, especially since vanilla timewalking is available to you at any moment in the classic client.
Makes sense to me. The bulk of the legwork was done when all the old maps, mobs, etc were adapted to the modern client in the process of building Classic, so there’s really no reason not to. Deleting content from MMOs is terrible idea and this would be a chance to undo that.
That’s the beauty of it being part of the timewalking rotation… most would only run those dungeons and raids for a week every three or four months. The simplicity would be refreshing.
They found all of the data on an old developer workstation backup that was lingering so not much reconstruction work was necessary. Most of the effort went into getting the modern client to read the old data properly.
Most of the quests, mobs, items, etc are still in retail, which we know because veterans still have those quests in their logs and items in their banks. I still have an AQ war effort quest in my log for example. What they’d need to do mainly is add original EK and Kalimdor as their own instance maps and copy NPC data over.
At least be happy that Blizzard is much better at maintaining their game, and all the zones are still there, with most NPCs and locations still intact. Unlike, say, Bungie, who basically deleted whole zones out of Destiny 2 - storylines, quests, voice acting, all gone.
Pre-Cata Shadowfang Keep! 
cries in Destiny 2
Especially with more modern technology. I’m glad we are getting a new Uldaman dungeon AND the original is still in the game, the new one just has a different entrance.
I hope Blizzard would add Zidormi to capital cities and revert the entire Eastern Kingdoms/Kalimdor back to pre-cata (because there would likely be issues if you did zone by zone, and should be the TBC/Wrath version of the world) so you can go around, no flying though, and do the old classic content which never should have been removed in the first place.
While were at it, pre-destruction viel without Black Empire as a point to go back to on Zidormi too please. 
What kills me about the Cata changes in particular is that expansion added the exact feature that would have enabled the two versions of Azeroth to coexist (terrain phasing), but they just didn’t use it.
Yup, and now they have all the data (thanks to Classic) and can re-introduce them AND give us a lore reason via Zidormi or another Bronze Dragon. Because Zidormi is bae allowing us to rewind mistakes like Teldrasil <3