It looks like we're getting it
how it works in kms
Your MVP Bronze rank will be based on cumulative Nexon Cash spent, once you achieve a rank you cannot go down. On the other hand, based on the amount of Nexon Cash you’ve spent in the last 3 months, you might be given an MVP Special rank.
•Bronze I: 10,000 Nexon Cash (cumulative)
•Bronze II: 100,000 Nexon Cash (cumulative)
•Bronze III: 200,000 Nexon Cash (cumulative)
•Bronze IV: 300,000 Nexon Cash (cumulative)
•Silver: 300,000 Nexon Cash (in the past 3 months)
•Gold: 600,000 Nexon Cash (in the past 3 months)
•Diamond: 900,000 Nexon Cash (in the past 3 months)
you're essentially paying a 300$ monthly subscription fee in order to get diamond rank.
The benefits for diamond gold and silver over in KMS
•MVP Superpower Buff (30 minutes): 30 attack and magic attack 
•MVP Healing Potion: 10,000 HP and MP 
•MVP Megaphone: effect is based on rank [3/4/5]
•Mu Lung Mind and Body Training Centre Charm [3 hours/6 hours/12 hours]
•MVP Plus EXP Buff (30 minutes): +50% experience [1/2/3]
•MVP Teleport World Map: 5 minute cooldown [1/1/1]
•MVP Only Mu Lung Dojo Entrance Coupon: lets you increase Mu Lung Dojo’s daily entry limit by 1 [1/1/1]
•Monster Park REBORN Discount Entry Coupon: lowers the Maple Points cost of entering Monster Park REBORN [1/2/3]
•MVP Title: [MVP Silver (5 attack and magic attack, 7 all stats, 500 HP and MP)/MVP Gold (7 attack and magic attack, 8 all stats, 500 HP and MP, 5 speed)/MVP Diamond (10 attack and magic attack, 10 all stats, 500 HP and MP, 5 speed, 6% defense ignore)]
•Maple Points Coupons: [3,000/6,000/9,000]
•MVP Nametag Ring/Chat Bubble Ring: effect is based on rank
•MVP Special Only Damage Skin
•Damage Skin Storage Scroll
•MVP Special Cape [X/Shine Noblesse/Eternal Noblesse]
•MVP Medal [X/Born to be Gold (3 attack and magic attack, 3 all stats, 5 jump)/Born to be Diamond (5 attack and magic attack, 5 all stats, 500 HP and MP, 7 jump)]
•MVP Diamond Only Hired Merchant [X/X/MVP Diamond Shop]
•MVP Diamond Only Char [X/X/Glow Spell]
Based on the MVP Special rank, they’ll receive Star Force enhancement cost discounts. 3% for Silver, 5% for Gold, and 10% for Diamond.
MVP Specials will receive premium benefits in the Auction House, including no search limits, increase in buying/selling slots, usage of the advanced combo box search, increased auction duration, and a lowered tax.
I hope it won't be exactly the same.