Hi!

I would like to first say, welcome to Naruto Online! xD I love it too haha

On to reply =p New servers are there for new players to make a fresh start, which allows players to begin their journey on a leveled playing field. New servers are not used just for a small period of time, so rest assured. In my opinion, you should stay on your server as there are many cross-server events that allow you to compete with other players. Forming bonds within your server and promoting the building of friendly relations and competition can help make your server stronger.

Hope that helps!

~Jib