Hi, I'm going to start making posting KMS updates, mainly because Spadow's blog is down and it would now the future of GMS.
I did ask a Mods permission for anyone that wants to know.
The new MapleStory update is called MapleStory Legend! The previously known Cannon Shooter will be released on July 7. The Archer Hero’s name is Mercedes, and she is the Queen of Elves. She will be released on July 21. The Resistance warrior is called Demon Slayer and will be released on August 4!
The Cannon Shooter:
Spoiler:

The Cannon Shooter job is an extension of the Adventurer class. He uses a new weapon called the Hand Cannon. He is focused on power. As he is sailing with his crew Skipper and Riding, he is attacked by a Balrog and shipwrecked! But on that island he finds Stoner, who enlists him to fix the cannon on the island and send them home.

He also has a partner, Monkey! Monkey helps the Cannon Shooter out in a lot of his skills, and even buffs him up with things like Monkey Magic.
Mercedes:
Spoiler:

Glamour and elegance, the Elf Queen Mercedes has awoken! She uses a new weapon called the Dual Bowgun. Her play style is all about quick movements and attacks, and also combos.

She, like Aran, was cursed by the Black Mage and frozen in ice. Her town was put in a deep slumber as well. After she has awoken, she decided to travel the Maple world and defeat the Black Mage to lift the curse that is still set on her town.
At level 70, she gets her mount, the unicorn. At 120, it grows!

Mercedes resides in the new elf town Eurel. This town was shown during the Maple Idol event, a secret easter egg by Nexon!
Genders:
Mercedes is not going to be a Gender Character! Seems like that from name.

Demon Slayer: (I've got a feeling this is gonna the best class!)
Spoiler:

The Demon Slayer will continue the Edelstein and Black Mage stories. He was a part of the Black Mage army but then his brother was killed by the Black Mage. In rage, he betrayed them and almost died. However, he woke up in Edelstein, and decided to join the Resistance to exact revenge upon the Black Mage and his army.

Demon Slayer has the Demon Force System. Instead of MP, the Demon Slayer uses Demon Force. The Demon Slayer uses one-handed maces (blunt weapons), and on his other hand is his Force Shield. I assume that it will be sort of a permanent equipment for this job. The glow of the Force Shield changes as the Demon Slayer advances.

He collects it by attacking monsters, and it appears in the form of glowing orbs.

This job is very special since you can customize his skin, face, and more.

The Demon Slayer does not have a mount per se, instead, he has wings, which he gets at 70 then upgrades at 120.
Skill Pics: (Only Examples!)

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KMS Update Posts:
Spoiler:
1st: This Post
2nd: 30/6 KMST Update
3rd: 7/07 Maintenance Update