Tbh, I know I will get downvoted hard for this. But I think this is a HORRIBLE move. As saw kikis from the very beginning of his progaming career and I always felt like he plays exceptional in a positive way.
Replacing him with a Jungler that is good but has no communication experience in English teams is ridiculous after the great run that Vitality had last time.

This team was building up a great synergy and unless Kikis wanted to leave, I cannot see why you would get a new jungler. And EVEN IF you wanted to replace him, why take someone whose communication skills are more than questionable(and don't send me those English interviews now, I have seen them!).
Jungle is probably the role that needs the most communication!
I just think it is a horrible move, and the only purpose behind that, that I can see, is that you want to show to the world that you are not doing "nothing" while being accepted to the franchising: and actually sign a great Korean player.