My primary concern is the client and WOW TBC Gold global interest . Of course, the 3.X client is far superior because the engine is refined and the tools are simpler to utilize. But I'm afraid I'll lose this Vanilla aspect of switching between 2.X to 3.X.X and I'm not interested in releasing WOTLK-related content. Additionally, I'm not sure how many people would be interested to play on a 2.4.3...