I play in GRAZED leading 3 guilds, Wrath Syndicate and Exempt. My second server is Reboot. I also play in Luna as I live in Europe. I also play KMS Luna server as well as MapleStory 2 Korea
In the Korean market, Maplestory 2 isn't (or wasn't, I'm unsure of its popularity currently) doing as well as Maplestory. This is because of a number of factors, like poor advertising.
A similar issue occurred with the Wii U; Nintendo poorly advertised the system and many people thought it was an extension of the Wii, resulting in lower sales, despite quite a few of the games being quite good.
Overall there's no official release date that I've heard off, either officially from Nexon or from community reports. Only speculation based on supposed job offers related to MS2 appearing and disappearing from the Nexon website. So, we'll see what happens when it happens if it happens, nothing's confirmed or denied and it's mostly up in limbo for now.
lol it's not because of poor advertising it's because Koreans are so invested in MapleStory 1 . Besides MapleStory 2 has a good player based and it would do better over here than in Korea because we don't have as many people playing MapleStory 1 as Korea does. Maple players over here want a new experience like MapleStory 2 over a grind based game like MapleStory 1. Different games please different markets. But you can also take in to account that there games are better managed...