Looking at the database of the servers related to those that are ES/EN, there is a fairly significant drop in them.
This has led some players to move to other more popular servers in order to have more activity and camaraderie, it would be good to take these servers or worlds and make them one.
Here I leave a table to find with numbers.
Arkadia Rho (ES/EN) US East 47 / 2000
Westernesse Rho (ES/EN) US West 46 / 2250
Nibiru Mu (ES/EN) SA East 41 / 2000
The most I have seen on each of these servers is a maximum of 200 people, which I think is very low when doing various activities that involve more players.
I think that this type of measure will help a lot in the gameplay for Spanish-speakers who belong to America.