http://www.kaust.edu.sa/application-form-kaust.html. The deadline hasn't changed. Just seems most people are tired of the waiting hence, the slow down in the thread . I was interviewed sometime in February and till now there hasn't been any letter of either acceptance or rejection. I know however, that a number of rejections as well as acceptances have been sent out to some people. if you are in my shoes, keep hopes high. Chances are they will still give out some acceptance letters. I am not in the US though.