Sit back and watch the world burn I guess. I've retreated from the game a while ago, I only do my Story Quests because I love the universe and the characters, but fell out of love with the "mechanics" back when the Void Weapon was first introduced. So, whatever happens, it won't faze me that much personally. I really feel bad for the KR players though, being screwed over by the game devs like this is horrible.
I know Elsword KR might recover from this, but "important" players shutting down their accounts and characters is a hard hit to take for the company. Not sure how well that one's ever gonna heal. You can't replace your old pro gamers that easily.
Also, +14 and new equip sounds like the required CP for the coming Demon Realm dungeons would keep increasing, making the whole world Pay2Play at some point. Not sure I'd want to support that in the first place. Sounds like a horrible update, really.