KMS - The Hero of Light, Mikhail!

And it's not the first time they've played a joke on their audience either. For the third time;
Till it's in the data, it's not legit.

Concept art, dev blogs, all of it is meaningless crap till it hits a test server and some of that never sees the light of day either.

I think a lot of people are just trusting the diary because it hasn't been used to fool people yet. Anything that has been posted there has come to pass.
....but really, I do have a feeling they are planning SOMETHING with KoC class....

Edit: On topic of the prank thing in the title, the only "confirmation" we have comes from Spadow, whom got it from a KMS fan ran site. I think we should hold off on the assumptions until we find a more concrete proof that this is indeed a prank. No official sources have proven nor disproven this entry, and typically the entries have come true.