I am posting it for those of who didn't see my post in the leak thread.
well, yesterday ota for android 4.1.1 for the koran sgs2 a.k.a 'SHW-M250K showed up at sammobile site.
but this ota is useless since its require 4.1.1 in order to use it.
However, this ota teach us that the update will bring Nature UX and that samsung actually statrted to work on the update.
I took some screenshots of the