Seems like they are doing it weekly but i dont think they usually merge 3 servers per region so i dont think its 20, but either way the merges being weekly is way better than monthy like last time

I dont think that a merge will happen in your server, first of all you had a merge already and secondly, its not a dead server, has preety good population comparing to other servers that didnt get a merge yet so i wouldn`t count on a merge