MapleStory 2 was outside in an evaluation type in South Korea, Nexon's home country, as 2015.
Following such a long lifetime, the first Maplestory2 Mesos has a devoted fan base. That is why making the sequel so different is smart. Fans that are spent in the original will still have a reason to stay with it, but the sequel is very likely to draw their fascination. In the best case situation, players could be busy on both matches.
You may sign up for the closed beta here. These evaluations give developer a means to MS Mesos gather feedback and ensure server stability and gameplay balance. They also act as a sort of demo, providing players a taste of a match and building hype before a complete launch.