I never see these items in game so I would happy. I don’t ever see anyone using them.
I was farming for the ZG tiger mount in wotlk then blizzard removed the instance in cata! Honestly though the MoP tigers have better models so I got over it. I like protodrakes so I would be happy to get them.
I also don’t see any one use the Qiraji mounts like ever so I would be happy to see more of those.
Bought some tcg stuff on the auction house in the past. I don’t think blizzard profits off these things anymore, and the $$$ was all made by players. So it’s more of a player issue. Opening up old stuff that isn’t in the game anymore is good for new players. Because the old playerbase is slowly dying. Like literally, I bet a nice % of wow players probably died to stuff like covid for example. Let people enjoy stuff in the game while blizzard still maintains it imo. One day the servers will shut down forever.