
"Fans, we hear you! In response to concerns about the limited time event, we have canceled Week in Wow."
We doing this song and dance again, 24h later?
Sometimes, the light of the moon is a key to other spaces. I've found a place where, for a night or two, the streets curve in unfamiliar ways. If I walk here, I might find insight, or I might be touched by madness.
Then why not just make a raid that's also playable as a megadungeon ? If you enter it with a group of fives it's a megadungeon, if you enter with more it's a raid, easy win. You just have to tweak a bit the abilities of the bosses depending of if it's a raid of a dungeon.
MMO Champs :

I want to know more information on Pandamonium.
Is it really timewalking the full campaign, or is it a speedrunning minigame?
Is it really only Siege of Orgrimmar, or are they sane and Throne of Thunder is coming back too?
They should go full ESO and everything comes back with new Panda gear and items.
Sometimes, the light of the moon is a key to other spaces. I've found a place where, for a night or two, the streets curve in unfamiliar ways. If I walk here, I might find insight, or I might be touched by madness.
I vote for Challenge modes transmogs, SoO timewalking or just difficulties coming back with MoP aotc mount as a reward coming back for the duration.
I think it's just the beginning of some kind of deeper timewalking seasons that bring back specific rewards that are no longer available, minus like elite pvp sets and such but who knows maybe these come back too, but i don't play pvp so i don't know how pvp players would feel about it.
If i had to vote again, next might be WoD with their weapon transmogs and moose aotc.

I think WoD too, then Legion, then BFA, etc. Mists is their "benchmark" for an expansion looking up to modern standards or close to them, so I think that they will do "timewalking seasons" for Mists-Shadowlands and then just revamp TBC/Outlands in the next saga like they will be doing for Wrath/Northrend.
Cata is a weird inbetween so I think they MAY do a Pandamonium type thing, or just skip it.
Yea and i actually didn't know that MoP is without timewalking raid as of now, so i bet there will be one when this event happens, overall Aotc became a thing in MoP, right?
Garrosh heirlooms datamined, recently Aotc wolf labelled probably by mistake as TP reward point more to SoO, but who knows maybe they will do ToT but these rewards will be attached to it, i would like to do garrosh fight personally but i know many people love ToT.
Timeless isle would be also fun if it came back with some twists but i don't have any ideas what they could do.
From WoD i think BRF would be the best raid to come back as timewalking.

So no hero talents this week?
"Megadungeons are the most popular feature ever added to the game" is a narrative with a lot of spin, like "Horde players are doing an evil playthrough." Megadungeons are only as favorable in opinion as any other dungeon. They're just big dungeons. They would be as positively received by the player base as adding any two new dungeons in the middle of an expansion. It's as much of a hot take as "players like it when content is added to the game."
I'm wondering what dev time goes into the boss encounter compared to the environnement, the story and all of that stuff. I can't help but think that you could dumb down a bit the design of a raid encounter to make it suitable for a dungeon. Sure, it would take longer than designing only a raid or only a megadungeon, but it would allow for both playerbase to enjoy something without having to actually create two instances.
MMO Champs :
It's all together. It's all connected. As they are developing the boss encounter (abilities, phases, strategies, adds, etc.), they are also thinking of how to incorporate those abilities into the environment and the overall lore of the character. They had this to say about the Lei Shen encounter from MoP:
https://worldofwarcraft.blizzard.com...one-of-thunderEncounter design
The core concept for the Lei Shen fight developed during a brainstorming session as members of the encounter design team were throwing around ideas for potential fight mechanics, trying to see if anything would stick. A popular idea was for him to need to pause and recharge periodically, but someone suggested an interesting twist on that idea—the Thunder King isn't just a battery that needs to recharge; he's actually a power source himself. So instead of him drawing power from his citadel, the citadel draws power from him. He is a mighty warrior in his own right, with distinctive weapon and lightning attacks, but his mere presence energizes and activates portions of his citadel’s defenses, and managing those becomes a central element of the encounter. With a wide array of incredible visuals provided by our effects artists, and an awesome dungeon backdrop (those walls aren't entirely decorative...), Lei Shen is an epic final encounter to wrap up an epic raid zone.[1]
An encounter like Lei Shen, probably couldn't be designed to work with only 5 players without overhauling it entirely (back when it was not Legacy content, of course).
The design of a raid encounter is very complex and must be connected to the environment of the boss arena and the overall lore of the setting and the character in question.
An encounter like Eonar from Antorus couldn't possibly be done by only 5 players, for instance.
For these reasons and others, you can't turn a Raid into a megadungeon.

The timewalking raids would probably be BRF, Nighthold, Battle for Dazar'alor and Nathria. Which is a shame because I really enjoyed Antorus and think its incredibly thematic for Legion, but people always talk about Nighthold as most iconic.
Also I like Sanctum a lot but people hate Sylvanas and Scribe that much for it to happen.

But Dragon Soul wasn't even a timeline issue, we just got warped to present and the only reason it was at the Caverns of Time was purely for convenience to go with the 3 new heroic dungeons in the same location.
I would rather go back to doing another Dragon Soul than to sit through Chromie's Multiverse of Madness. Not so much the Dracthyr story (honestly don't even need to do that to understand the Dracthyr's story as it was just cut and dry).
I would've rather we had Caverns of Time dungeons to some of the other set pieces we were at like the Gnoll Wars, the Pandaren Revolution, OR EVEN THE WAR OF THE SHIFTING SAND... but instead we just have to deal with Galakrond's corpse bile and basically undo the mistake we made of going after Iridikron.
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Same, I mean we know the basis for Midnight and The Last Titan, but people will still throw "leaks" of what might happen and "spoil the story" or other nuggets of info...