If the NA servers are not Within NA and there in JP then there no point of even adding a NA / JP only servers the ping would be the same and that the only reason why people would even join a NA for low Ping.

SE if you not going to put the NA servers in NA then don't even do it we like playing with others even if the JP players don't like to playing with us then that fine by me but not seeing them would make me sad there a few JP players who enjoy playing with us and i have a few in my linkshell and i help them out. But making a JP / NA and so on servers would make them leave to join with there friend and we wont see much JP players