not to mention its not a new server, its just another server on old hardware so alot of the same problems will be encountered, maybe not right off the bat, but eventually

And you have to keep in mind. Its not just single people moving there. There are full guilds moving there. Mostly guilds with under 200 members I would think. So once it comes time to do Raids and things settle down on Cho'gall. You will see lag. But who knows how bad it will get.

moving to another server= FTL