I wanna know if they're gonna have a single server or if they are gonna be like MS 1 where they made so much servers that many of them became dead.
Likely, but we don't know because the game is still in testing. Most likely it will start with one or two servers, and then add more later as the playerbase expands. MS1 started with Scania only. Bera was added next, then Windia or Broa, and then the others.
I would predict that they would start with one server. Seeing as they have a system for event bosses all over the world, mini games, and dungeons; where they want people to flood and work together. The game seems like it would thrive with a high condensed population rather than spread out of multiple servers. I bet it will stay with 1 server until enough people whine and complain about ksing and over population, then they will add more. (I hope not too many, like what contributed to ruining MS1).
5 Servers (so far)
Scania, Windia, Mardia, Hacerlo, and Fleta.