Wow Taiwan is going to be boring , unless you are with your guild. PUG raids are going to be hard , because it would be hard to find someone who speaks English , so basically you would be with your guild and plus you'll miss awesome jokes in trade chat.

If you buy battle chest , you can play panda except monk , you cacn even try out the remakes of new dungeons and enjoy cross-realm zones and things like that. What limits you is that you can't visit other worlds (they need expansion)

Anyhow go try WoW TW , see if you like or not , if you don't like zepx pointed out , move back to WoW US