Please, i know you already noticed the complains here on the forum, sit again with smilegate and unfortunately at least go back to 1 per month, if you care even a little about the player go 2 class per month or 3 classes in this two month roadmap.
You said that this would make new player and returning players to the game, well this is true but why do you think they aren’t playing and are quitting in first place?
Those who will quit and when finally their class is released they will likely not come back, because they will never catch up unless they spend a ton of money, but it seems that is very well what you guys want, isn’t?
I’m a f2p player like a lot out there, so my progress is more slow than others, i don’t mind much but the way the progress work in Lost Ark, if your main is finally release he or she will NEVER catch up to the class that you were playing before UNLESS you purposely don’t touch that class for MONTHS, if you continue playing in your old main your new “main” won’t be the highest level on you account ever.
If this was similar to Black Desert Online i may would not quit, in BDO when a new class in the sense that is new on Korea and that was also the same thing when it was published in a new region and was catching up in classes, you could very well day 1 or week 1 if you are a little bit more lazy to have that new class ready for endgame because all use almost the same equipaments and they are shared in the account, you just tranfers the items another class, and use the cupoms to transfer the weapons or easily get a one level below, in Lost Ark that isn’t the case, you can’t transfer your 1415, 1445, 1460 or 1490+ ilvl items to another class day one, you need to spend weeks, months doing daily and weekly to reach that ilvl but it may never reach the highest ilvl on your roster, because the character with highest ilvl will still be able to generate bound leapstones to hone only in that characters.
So please, go back in that decision, still have around 2 or 3 weeks to fix it.