Classic+ Fresh would mean everyone starts at level 1 and things are added as additional / new content in the vanilla wow client. More / changed raids, more / changed dungeons. Game mechanics added / altered. New zones, new lore, new quests etc. Game / class balance changes. More QoL things like AoE looting, larger stack sizes, etc.
-Yes
-No
-Maybe
For me, id like to see something like that. I'd make a character on that type of realm / game.