I had a fun year playing Classic from launch, but then people realized Mages are broken in several ways. While they have broken, "Do everything" class design and insane utility, more importantly they also have unlimited-target AoE. First, this ruined large scale PvP as all it took was mages mashing frost nova and arcane explosion to clear a raid of 40+ players solo in a few seconds by themselves with opposing players being powerless without using consumables. Much worse, they can do dungeon pulls to level others, generating insane amounts of gold and making sure everyone sits in instances, instead of grinding and questing in the open world. The economy got destroyed because of this. The open world died because of this outside of raid nights in the respective zones. I had to stop playing because the game became a full-time, unpaid job. It was a chore, farming for hours daily just to get gold that became worth less and less every subsequent day. The stuff I sold got cheaper and costs of what I bought got higher. It was a treadmill and I was effectively forced to stop playing the game.
It's legitimately not hyperbole to say that mages single-handedly ruined Classic. Also playing a Warrior (my main, and only character for about 9 months) is fucking aids unless you raid log, since in the raid instance is the ONLY time a Warrior exceeds at anything in Classic. Warriors have BY FAR the biggest expenses to operate adequately at a high level (at month 3 after launch, expect to pay at least 5000 for MANDATORY gear such as Edgemasters Handguards, and 100+g every raid night for consumes), yet are the worst class at making gold outside of charging others for services which gets you a bad reputation. And to think they're only good as a MT in TBC. Expect lots of boosted hunters and warlocks from ex-Warrior players soon.
No fresh TBC servers is very bad news. With mage boosting, botting, and gold buying in Classic, the economy WILL be ruined day 1 TBC launch and get even worse. Even though fresh servers would only reset the timer on these issues, it would at least allow new players to not be immediately priced out of playing the endgame day 1 and try to stay afloat in-game. I seriously hope Blizz reconsiders their server releases and adds 'Fresh TBC' servers as an option. Otherwise, there will be horrendous player retention from any new players coming in with TBC.