This all makes my brain hurt! I just want to know what is going on! I do plan to play Classic, as I don’t really enjoy numerous aspects of the live game (Daily Quests, RNG Upgrades, ETC.)
I feel bad for being so pessimistic, to try to be helpful… Of all the things people complain about most on this forum, in regards to “I can’t believe Bliz is going to put that change in”, the changes that are actually bound in some fact are very few. I think the most widely accepted factual changes would be sharding servers during release to fight high server loads, and loot trading. Meaning loot picked up in a dungeon could be traded within a group, not necessarily 100% bind on pickup.
There’s a pinned thread started by Banjaa called “everything we know about classic” that kind of breaks down the main issues. It quickly goes off the rails but the first post and responses have a list to get you started
Until the beta is playable, consider literally everything unconfirmed.
Anyone who says they know what the game will be like or whether or not there will be changes doesnt know any more than the rest of us, and can be safely ignored.
The big thing with no changes is advocating against QoL additions added in later expansions. Examples would be dungeon finder, raid finder, shared loot, right click reporting, and sharding.
There are other topics of debate like guild banks, new graphics, xrealm bg’s, prot paladen viability, and phasing.
From what I’ve noticed all of those in the first paragraph are a NO. The topics in the second paragraph tend to spark heated debates.