So gonna pre-face what Im about to say by saying that I support musuem piece WoW. Every element of classic that isnt like vanilla is a piece of history gone.
Now that I’ve said that Im gonna say something thats decently unpopular. Im hopeful classic leads to improvements to WoW itself. I think there are far too many things wrong with retail to be fixed, but the potential for expansion content that doesnt touch classic is there. I want that content.
Now that Ive said all that Im gonna say something even less popular. I sorta agree with OP. I think that some of the changes to the game might cause it to feel bad. There are already numerous bug reports on hunters being broken in ways they werent for vanilla. I get a strong vibe the game being based on the modern engine MIGHT leave some unhappy.
The best example I can think of is homeworld vs homeworld remastered. Now while I think a good chunk of Retail wow’s graphics are embarassingly bad compared to classic, I think the homeworld remaster nails the graphics in a way retails turn for tooniness never could dream of.
But the remaster was done in the homeworld 2 engine and…well…see for yourself from someone who knows better.
For those that dont want to watch, the video talks about formations and ship behavior. In the original homeworld formations and behaviors gave you much stronger control over your ships. The TTK of combat is much lower in the original than the remaster if you know what youre doing.
In addition, the combat system has a major flaw in that it was changed so attacks are RNG based instead. In the original homeworld they used actual physics.
Now Im not saying that WoW is gonna end up as poorly executed as the homeworld remaster, but what I am saying is that the engine is different, things probably arent going to function the way people remember, and things might be different.
In spite of the statement that “they have the original code” so did the devs with homeworld. They built it on the homeworld 2 engine instead supposedly for easier multiplayer interactions. And hey look, vanilla isnt being made in the old client, its being made in the new one.
So again, im not saying the game is gonna be bad, and on the contrary I quite think I will love it, but I am saying that you might not be quite as happy with it as you would with the real deal. Thats all.