It's much wiser business wise to just re-release TBC and wrath and not create new content for classic. The investment into TBC and WOTLK servers is much smaller than new content would be, and would likely yield similar profits (if not less if the content ends up being bad). They know people enjoyed TBC and wrath, so there's already an audience for it. There's effectively no risk to it, especially since they proved with classic they they can adapt old data to the new back end.

The main problem is that wow classic gold themselves bring in content that led to some unwanted retail features in the form of LFG, flying, content obsoletion etc. It would suck imo to go down the same path instead of trying to learn from retail’s mistakes and vanilla’s successes to make an mmo closer to vanilla than retail.

Jokes aside, I hope not. I would rather them work on going the OSRS route than squandering this opportunity on progression/EoL servers that most people don't actually care about or enjoy.

Not mention, adding BC and/or WOTLK is just a temporary fix. What happens after that? Oh shit, now we're stuck again because we repeated the exact same mistakes as we did in 2007-2009. If they actually flesh out the classic world and finish it, that would have a lot more longevity to it.

New raids or dungeons aren't going to keep people interested very long, but accentuating the MMO and RPG parts of the game will, and Classic is the perfect playground for doing that.

I imagine they already have a plan or two depending on the success of classic but I’d be happiest to see original content I think.

God damn them. They're not even in Early Access yet and already making paid DLC. Will the greed of this company never end?

A reminder that the success of games often has little to do with any individual mechanic, and games can be successful despite bad ideas.

I'd say it's the opposite, really. Everyone likes it, grows dependent on it, and expects it every single time from now on. Except, what does it add to gameplay? Convenience, and not much else. What does it take away? Literally all interaction with the world, even the need to focus.

Prior to its addition, people needed to stay focused on their local area, either to prevent mobs from slapping them off, to prevent other players from ganking them, to keep themselves from walking into a wall or off a cliff, or to distract themselves on the way to their intended destination. Now, people fly into the skybox, press numberlock, and watch a video until they're on the other side of the continent.

280% movement speed was the "bad idea" part of flying. It not only became the safest method of movement, but it became the fastest method as well. Everyone got used to this new easy transportation, and it became the new norm. Now, a hellstorm will form if Blizzard so much as doesn't promise that flying will be wow skill sharing available in every area. 

I can't imagine how much negativity would occur if Blizzard pulled flying speed back down to 200% or 150% like they should have at the start.Next thing you are going to tell me is that there is going to be a world ending event with a Dragon that shapes different zones and revamps all of the zones.