I've explained to a few people, who suggested adding worlds would solve congestion issues, how it would not fix the problem in the long term. Having witness this happen to an MMO that started off really popular, greatly hyped and has a loyal fan base, I didn't want to see this happen to 14. Servers were added but, eventually, people stopped playing. First they got rid of all of their pvp servers, then they got rid of their regional servers. Last I heard, they only have 4 servers covering all the regions the game used to have separated.

So you can see my bit of concern and why I feel that adding more worlds is the equivalent to putting a short-term solution on something that has long term effects.