Your card has been dealt.

If I'm not mistaken, male pronouns in English can be used as a generic pronoun when referring to a person of ambiguous/unknown gender.

True!

And I will now step out of this gender conversation with one final thing to say:
Nexon seems to like having ratios of 2:3 (Female:Male). The instructors for adventures reflects this, same with the instructors for Resistance and KoC. The heroes, on the other hand, only have themselves to display. We currently have Aran, Evan and Mercedes. Now, if we take the information in game of Testonen, which was slightly confirmed to still be around by saying that Kyrin was born by Yuris in the Ellin Forest around the time of the heroes by Aran's plot line, we can confirm him (or his successor, whichever route they pick) to be the third male. Regardless of the name, Kyrin's father is seemingly going to be the original pirate hero. This said, I am going to assume Nexon is not going to change their ratio balance and I believe this hero will be female.

I will now wait for the 8th and see if they make her a female or pull a forever ambiguous on us.