MapleStory 2, welcome.

Or it's open world PvP, which I hope not. I dunno if they've ever said one way or the other in regards to that.

Nah the pvp we see is probably in an instanced area, however in the customization video for supporters day we can see a player actually hitting another player with an object.
So there seemingly open world pvp too, though I'd imagine you could turn it off.

also the translations for the questions at the end.

Q: Do you plan to add more jobs?

If we did add more jobs, they would not be like Hero classes. But for now, I believe we should focus more on balancing our current 8 jobs and making sure each of them have unique characteristics.

Q: Will there be PvP content?

Yes, there will be. Currently, the fighting is very ‘hack and slash’ but we hope to develop battle roles more in the future. There is going to be a variety of PvP conditions because we want to consider users who generally dislike PvP.